← 워크북으로워크북 인쇄 · 100까지의 수와 20 이내 계산
인쇄 창이 안 열리면 [인쇄하기]를 누르세요.
iPad·iPhone은 공유 버튼 → 프린트. PDF로 저장하려면 미리보기를 두 손가락으로 벌리세요.
YEAR 1 REVIEW · MATHS

Lia's Maths Book

Numbers to 100 · Counting · Facts within 20

9899100101102
  • Topic 1 · Count forwards and backwards
  • Topic 2 · Numbers to 100
  • Topic 3 · Count in 2s, 5s and 10s
  • Topic 4 · Number words 1 to 20
  • Topic 5 · Add and subtract within 20
  • Daily Practice 1–10 · do them again and again!
Lia's Maths Book · Numbers to 100 and facts within 20 · liabooks.com/study1

How to use this book

Name:
  1. Learn a topic with Dad.
  2. Do one Daily Practice page every day.
  3. Check your answers. Count your score.
  4. Do it again another day. Can you get a better score?

Colour the stars: ★ = I tried. ★★ = most were right. ★★★ = all right!

PracticeFirst timeSecond time
Daily Practice 1
Daily Practice 2
Daily Practice 3
Daily Practice 4
Daily Practice 5
Daily Practice 6
Daily Practice 7
Daily Practice 8
Daily Practice 9
Daily Practice 10
For DadPrint the Daily Practice pages again for more practice. The number words and the 100 square are good to stick on the wall.

My Number Words

My 100 Square

Lia's Maths Book · Numbers to 100 and facts within 20 · liabooks.com/study2

My Number Words

Name:
  • 0zero
  • 1one
  • 2two
  • 3three
  • 4four
  • 5five
  • 6six
  • 7seven
  • 8eight
  • 9nine
  • 10ten
  • 11eleven
  • 12twelve
  • 13thirteen
  • 14fourteen
  • 15fifteen
  • 16sixteen
  • 17seventeen
  • 18eighteen
  • 19nineteen
  • 20twenty

Tens

  • 10ten
  • 20twenty
  • 30thirty
  • 40forty
  • 50fifty
  • 60sixty
  • 70seventy
  • 80eighty
  • 90ninety
  • 100one hundred

Counting words

  • count forwards1, 2, 3, 4 …
  • count backwards10, 9, 8, 7 …
  • one moreOne more than 7 is 8.
  • one lessOne less than 7 is 6.
  • before / after6 comes before 7. 8 comes after 7.
  • between7 is between 6 and 8.
  • count in 2s2, 4, 6, 8, 10 …
  • count in 5s5, 10, 15, 20 …
  • count in 10s10, 20, 30, 40 …
Lia's Maths Book · Numbers to 100 and facts within 20 · liabooks.com/study3

My 100 Square

Name:

Read the rows. What do you notice? Each row starts with a new ten.

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100
Going down one row = 10 more. Going up one row = 10 less. Going right = 1 more. Going left = 1 less.
After 100 we say: one hundred and one (101), one hundred and two (102) … one hundred and twenty (120).
Lia's Maths Book · Numbers to 100 and facts within 20 · liabooks.com/study4
Topic 1

Count forwards and backwards

Name:

Today I will: count to and across 100.

Maths words todaycount forwardscount backwardsacross 100
Look!
979899100101102

After 99 comes 100. After 100 comes 101 (one hundred and one).

1

Count forwards. Fill in the missing numbers.

4546484952
6668707172
95969799102
2

Count backwards. Fill in the missing numbers.

3231292726
6158575554
1041031019897
Say it!Count out loud from 95 to 105. Then count back from 105 to 95.
Lia's Maths Book · Numbers to 100 and facts within 20 · liabooks.com/study5
Topic 1

One more, one less

Name:

Today I will: find the number before and after.

Maths words todayone moreone lessbeforeafterbetween
3

Write one less and one more.

one lessnumberone more
39
70
99
100
20
4

Answer the questions.

a
What comes after 59?
b
What comes before 80?
c
What number is between 47 and 49?
d
What comes after 109?
5

Start at 88. Count forwards. Write the next 5 numbers.

88
Lia's Maths Book · Numbers to 100 and facts within 20 · liabooks.com/study6
Topic 2

Numbers to 100

Name:

Today I will: read and write numbers to 100.

Maths words todaytensonesdigitnumeral
Look!

4 tens and 6 ones.

The 4 is the tens digit. The 6 is the ones digit.

46

1

How many? Write the numeral.

4tens and6ones =
7tens and0ones =
2tens and9ones =
9tens and3ones =
2

Split the number into tens and ones.

58=tens andones
31=tens andones
80=tens andones
17=tens andones
3

These are pieces of the 100 square. Fill in the missing numbers.

34
57
82
4

Write the numbers in order. Start with the smallest.

4554405
Lia's Maths Book · Numbers to 100 and facts within 20 · liabooks.com/study7
Topic 3

Count in 2s, 5s and 10s

Name:

Today I will: count in groups.

Maths words todaycount in 2scount in 5scount in 10spairs
Look!

Count the pairs in 2s: 2, 4, 6, 8

Count in 5s: 5, 10, 15

1

Count in 2s. How many socks?

socks
2

Count in 5s. How many fingers?

fingers
3

Count in 10s. How much money?

10sen10sen10sen10sen10sen10sen10sen10sen
sen
Say it!Count in 2s to 30. Count in 5s to 100. Count in 10s to 100 and back to 0.
Lia's Maths Book · Numbers to 100 and facts within 20 · liabooks.com/study8
Topic 3

Counting patterns

Name:

Today I will: find patterns when I count in 2s, 5s and 10s.

4

Fill in the missing numbers. Is it 2s, 5s or 10s?

a
2461014
b
2022263034
c
510203035
d
5565708090
e
1020305070
f
4050607090
g
5045353015
h
10080705040
5

Colour the numbers you say when you count in 5s. What pattern do you see?

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100
Lia's Maths Book · Numbers to 100 and facts within 20 · liabooks.com/study9
Topic 4

Number words 1 to 20

Name:

Today I will: read and write number words.

Maths words todaynumeralwordspell
Look!

numeral: 14

word: fourteen

Say it: four-TEEN

14

1

Draw a line to match the numeral and the word.

3fifteen8twelve11twenty15three20eleven12eight
2

Write the number in words.

4 
9 
13 
17 
14 
19 
Lia's Maths Book · Numbers to 100 and facts within 20 · liabooks.com/study10
Topic 4

Spelling number words

Name:

Today I will: spell number words the right way.

3

Read the word. Write the numeral.

a
seven=
b
sixteen=
c
ten=
d
eighteen=
e
two=
f
twelve=
4

Which one is spelled right? Circle it.

a
fourtyforty
b
twelvetwelv
c
fiveteenfifteen
d
elevenelevan
e
twentytwenti
f
threeteenthirteen
Tricky wordseleven · twelve · thirteen (not threeteen) · fifteen (not fiveteen) · twenty · forty (no u!)
5

How many stars? Write the number in words.

16 
Lia's Maths Book · Numbers to 100 and facts within 20 · liabooks.com/study11
Topic 5

Add and subtract within 20

Name:

Today I will: use doubles and bonds to 20.

Maths words todaydoubleequalsbond to 20
Look!

10 and 3 make 13.

13 and 7 make 20.

13 + 7 = 20

1

Doubles. Add the same number two times.

6+6=
8+8=
9+9=
10+10=
7+7=
5+5=
2

Bonds to 20. Use your bonds to 10 to help!

13+=20
+16=20
20−9=
20=18+
11+=20
20−=15
3

Add or subtract.

9+5=
7+6=
8+4=
15−6=
12−5=
17−8=
14+3=
19−7=
0+13=
Lia's Maths Book · Numbers to 100 and facts within 20 · liabooks.com/study12
Topic 5

Stories within 20

Name:

Today I will: solve adding and subtracting stories.

4

True or false? Circle one.

a
9+6=15truefalse
b
14=7+7truefalse
c
18−9=8truefalse
d
20−0=0truefalse
5

Solve the stories.

a

Lia has 12 shells. She finds 5 more shells. How many shells does she have now?

Answer:
+−
b

There are 18 children in the pool. 6 children get out. How many children are in the pool now?

Answer:
+−
c

Dad has 9 red socks and 9 blue socks. How many socks does he have altogether?

Answer:
+−
d

There are 20 sweets in a bag. Lia eats 4. How many sweets are left?

Answer:
+−
Say it!I know + = , so I know − = .
Lia's Maths Book · Numbers to 100 and facts within 20 · liabooks.com/study13

Daily Practice 1

Name:
Date:Score: / 37
A

Count forwards

45464849
B

Count backwards

1041039998
C

Count in 2s, 5s and 10s

2s681016
5s50453525
10s20306070
D

One less, one more

one lessnumberone more
92
62
65
E

Number words

7 
3 
14 
fifteen=
ten=
four=
F

Add and subtract

12+8=
13+=17
7+7=
20−13=
8+3=
19−14=
9+5=
4+=11
7+13=
G

Tens and ones

4tens and0ones =
76=tens andones
H

Story

There are 5 red cars and 7 blue cars. How many cars are there altogether?

Answer:
+−
Lia's Maths Book · Numbers to 100 and facts within 20 · liabooks.com/study14

Daily Practice 2

Name:
Date:Score: / 37
A

Count forwards

94959798
B

Count backwards

65636261
C

Count in 2s, 5s and 10s

2s34364044
5s45506070
10s50608090
D

One less, one more

one lessnumberone more
21
79
34
E

Number words

20 
19 
15 
seventeen=
eight=
twelve=
F

Add and subtract

11+=15
17−14=
10+10=
4+4=
11+3=
14−12=
10+8=
9+9=
10−3=
G

Tens and ones

5tens and4ones =
76=tens andones
H

Story

There are 8 red cars and 4 blue cars. How many cars are there altogether?

Answer:
+−
Lia's Maths Book · Numbers to 100 and facts within 20 · liabooks.com/study15

Daily Practice 3

Name:
Date:Score: / 37
A

Count forwards

79818285
B

Count backwards

87848281
C

Count in 2s, 5s and 10s

2s16222426
5s75706555
10s10204060
D

One less, one more

one lessnumberone more
85
97
64
E

Number words

8 
19 
20 
three=
twelve=
four=
F

Add and subtract

6+=19
11+=20
19−10=
10+9=
7+=9
10−3=
16−5=
9+7=
12+7=
G

Tens and ones

3tens and9ones =
33=tens andones
H

Story

There are 9 birds on a tree. 10 more birds come. How many birds are there now?

Answer:
+−
Lia's Maths Book · Numbers to 100 and facts within 20 · liabooks.com/study16

Daily Practice 4

Name:
Date:Score: / 37
A

Count forwards

23252829
B

Count backwards

44414038
C

Count in 2s, 5s and 10s

2s22242630
5s30354055
10s10204050
D

One less, one more

one lessnumberone more
91
49
63
E

Number words

2 
15 
19 
eight=
nine=
three=
F

Add and subtract

3+=8
11+3=
6+10=
13−2=
17−7=
2+16=
10+=14
4+4=
5+=7
G

Tens and ones

4tens and7ones =
41=tens andones
H

Story

Lia reads 11 pages on Monday and 3 pages on Tuesday. What is the total?

Answer:
+−
Lia's Maths Book · Numbers to 100 and facts within 20 · liabooks.com/study17

Daily Practice 5

Name:
Date:Score: / 37
A

Count forwards

34353638
B

Count backwards

65626059
C

Count in 2s, 5s and 10s

2s24262830
5s15203035
10s40506080
D

One less, one more

one lessnumberone more
78
43
90
E

Number words

11 
4 
12 
six=
thirteen=
nine=
F

Add and subtract

12+=20
10+10=
11+=19
7+=17
4+4=
9+=16
19−9=
5+=8
10+=18
G

Tens and ones

5tens and3ones =
28=tens andones
H

Story

There are 5 red cars and 11 blue cars. How many cars are there altogether?

Answer:
+−
Lia's Maths Book · Numbers to 100 and facts within 20 · liabooks.com/study18

Daily Practice 6

Name:
Date:Score: / 37
A

Count forwards

9799102103
B

Count backwards

52515047
C

Count in 2s, 5s and 10s

2s16182224
5s40455060
10s30405080
D

One less, one more

one lessnumberone more
100
47
55
E

Number words

11 
6 
5 
fourteen=
three=
one=
F

Add and subtract

7+3=
5+5=
8+8=
19−18=
17−9=
15−7=
4+16=
9+5=
17−7=
G

Tens and ones

4tens and9ones =
66=tens andones
H

Story

Lia has 16 stickers. She gives 7 to her friend. How many stickers are left?

Answer:
+−
Lia's Maths Book · Numbers to 100 and facts within 20 · liabooks.com/study19

Daily Practice 7

Name:
Date:Score: / 37
A

Count forwards

75788081
B

Count backwards

60595856
C

Count in 2s, 5s and 10s

2s14162022
5s40352015
10s50708090
D

One less, one more

one lessnumberone more
31
99
74
E

Number words

7 
5 
15 
nine=
three=
four=
F

Add and subtract

14−7=
3+11=
12−5=
8+6=
5+5=
4+=15
11−4=
7+7=
15−13=
G

Tens and ones

2tens and6ones =
93=tens andones
H

Story

Lia reads 12 pages on Monday and 5 pages on Tuesday. What is the total?

Answer:
+−
Lia's Maths Book · Numbers to 100 and facts within 20 · liabooks.com/study20

Daily Practice 8

Name:
Date:Score: / 37
A

Count forwards

31323336
B

Count backwards

53524948
C

Count in 2s, 5s and 10s

2s14161820
5s35251510
10s20305070
D

One less, one more

one lessnumberone more
91
89
93
E

Number words

2 
19 
15 
twenty=
twelve=
thirteen=
F

Add and subtract

8+8=
6+6=
10+9=
2+4=
20−19=
8+4=
11−8=
3+3=
20−6=
G

Tens and ones

4tens and0ones =
50=tens andones
H

Story

Lia has 20 stickers. She gives 8 to her friend. How many stickers are left?

Answer:
+−
Lia's Maths Book · Numbers to 100 and facts within 20 · liabooks.com/study21

Daily Practice 9

Name:
Date:Score: / 37
A

Count forwards

50525354
B

Count backwards

92908988
C

Count in 2s, 5s and 10s

2s16182426
5s65605545
10s508090100
D

One less, one more

one lessnumberone more
91
29
54
E

Number words

20 
7 
5 
six=
thirteen=
fourteen=
F

Add and subtract

10+10=
8+7=
4+2=
3+3=
14−11=
9−5=
6+6=
16−10=
4+4=
G

Tens and ones

9tens and5ones =
96=tens andones
H

Story

There are 11 balloons. 5 balloons pop. How many balloons are left?

Answer:
+−
Lia's Maths Book · Numbers to 100 and facts within 20 · liabooks.com/study22

Daily Practice 10

Name:
Date:Score: / 37
A

Count forwards

52545657
B

Count backwards

10310110099
C

Count in 2s, 5s and 10s

2s10121620
5s40455060
10s10203050
D

One less, one more

one lessnumberone more
75
24
63
E

Number words

18 
15 
9 
five=
seven=
seventeen=
F

Add and subtract

15−4=
9+5=
9+7=
11−3=
10−4=
10−1=
7+=20
2+16=
11−4=
G

Tens and ones

7tens and8ones =
85=tens andones
H

Story

There are 19 cookies on a plate. Dad eats 10. How many cookies are left?

Answer:
+−
Lia's Maths Book · Numbers to 100 and facts within 20 · liabooks.com/study23

Answers

Topic 1 · Count forwards and backwards

1a
47, 50, 51
1b
67, 69, 73
1c
98, 100, 101
2a
30, 28, 25
2b
60, 59, 56
2c
102, 100, 99
3a
39: 38, 40
3b
70: 69, 71
3c
99: 98, 100
3d
100: 99, 101
3e
20: 19, 21
4a
60
4b
79
4c
48
4d
110
5
89, 90, 91, 92, 93

Topic 2 · Numbers to 100

1a
46
1b
70
1c
29
1d
93
2a
5 tens, 8 ones
2b
3 tens, 1 ones
2c
8 tens, 0 ones
2d
1 tens, 7 ones
3a
up 24, left 33, right 35, down 44
3b
up 47, left 56, right 58, down 67
3c
up 72, left 81, right 83, down 92
4
5, 40, 45, 54

Topic 3 · Count in 2s, 5s and 10s

1
12
2
35
3
80
4a
8, 12, 16
4b
24, 28, 32
4c
15, 25, 40
4d
60, 75, 85
4e
40, 60, 80
4f
80, 100, 110
4g
40, 25, 20
4h
90, 60, 30
5
5, 10, 15 … 100 (two straight columns: the 5 column and the 10 column)

Topic 4 · Number words 1 to 20

1
3 = three; 8 = eight; 11 = eleven; 15 = fifteen; 20 = twenty; 12 = twelve
2a
4 = four
2b
9 = nine
2c
13 = thirteen
2d
17 = seventeen
2e
14 = fourteen
2f
19 = nineteen
3a
seven = 7
3b
sixteen = 16
3c
ten = 10
3d
eighteen = 18
3e
two = 2
3f
twelve = 12
4a
forty
4b
twelve
4c
fifteen
4d
eleven
4e
twenty
4f
thirteen
5
16 = sixteen

Topic 5 · Add and subtract within 20

1a
12
1b
16
1c
18
1d
20
1e
14
1f
10
2a
7
2b
4
2c
11
2d
2
2e
9
2f
5
3a
14
3b
13
3c
12
3d
9
3e
7
3f
9
3g
17
3h
12
3i
13
4a
true
4b
true
4c
false (9)
4d
false (20)
5a
+ → 17
5b
− → 12
5c
+ → 18
5d
− → 16

Daily Practice 1

A
47, 50, 51
B
102, 101, 100
C1
12, 14
C2
40, 30
C3
40, 50
D1
92: 91, 93
D2
62: 61, 63
D3
65: 64, 66
E1
7 = seven
E2
3 = three
E3
14 = fourteen
E4
fifteen = 15
E5
ten = 10
E6
four = 4
F1
20
F2
4
F3
14
F4
7
F5
11
F6
5
F7
14
F8
7
F9
20
G1
40
G2
7 tens, 6 ones
H
+ → 12

Daily Practice 2

A
96, 99, 100
B
64, 60, 59
C1
38, 42
C2
55, 65
C3
70, 100
D1
21: 20, 22
D2
79: 78, 80
D3
34: 33, 35
E1
20 = twenty
E2
19 = nineteen
E3
15 = fifteen
E4
seventeen = 17
E5
eight = 8
E6
twelve = 12
F1
4
F2
3
F3
20
F4
8
F5
14
F6
2
F7
18
F8
18
F9
7
G1
54
G2
7 tens, 6 ones
H
+ → 12

Daily Practice 3

A
80, 83, 84
B
86, 85, 83
C1
18, 20
C2
60, 50
C3
30, 50
D1
85: 84, 86
D2
97: 96, 98
D3
64: 63, 65
E1
8 = eight
E2
19 = nineteen
E3
20 = twenty
E4
three = 3
E5
twelve = 12
E6
four = 4
F1
13
F2
9
F3
9
F4
19
F5
2
F6
7
F7
11
F8
16
F9
19
G1
39
G2
3 tens, 3 ones
H
+ → 19

Daily Practice 4

A
24, 26, 27
B
43, 42, 39
C1
28, 32
C2
45, 50
C3
30, 60
D1
91: 90, 92
D2
49: 48, 50
D3
63: 62, 64
E1
2 = two
E2
15 = fifteen
E3
19 = nineteen
E4
eight = 8
E5
nine = 9
E6
three = 3
F1
5
F2
14
F3
16
F4
11
F5
10
F6
18
F7
4
F8
8
F9
2
G1
47
G2
4 tens, 1 ones
H
+ → 14

Daily Practice 5

A
37, 39, 40
B
64, 63, 61
C1
32, 34
C2
25, 40
C3
70, 90
D1
78: 77, 79
D2
43: 42, 44
D3
90: 89, 91
E1
11 = eleven
E2
4 = four
E3
12 = twelve
E4
six = 6
E5
thirteen = 13
E6
nine = 9
F1
8
F2
20
F3
8
F4
10
F5
8
F6
7
F7
10
F8
3
F9
8
G1
53
G2
2 tens, 8 ones
H
+ → 16

Daily Practice 6

A
98, 100, 101
B
49, 48, 46
C1
20, 26
C2
55, 65
C3
60, 70
D1
100: 99, 101
D2
47: 46, 48
D3
55: 54, 56
E1
11 = eleven
E2
6 = six
E3
5 = five
E4
fourteen = 14
E5
three = 3
E6
one = 1
F1
10
F2
10
F3
16
F4
1
F5
8
F6
8
F7
20
F8
14
F9
10
G1
49
G2
6 tens, 6 ones
H
− → 9

Daily Practice 7

A
76, 77, 79
B
57, 55, 54
C1
18, 24
C2
30, 25
C3
60, 100
D1
31: 30, 32
D2
99: 98, 100
D3
74: 73, 75
E1
7 = seven
E2
5 = five
E3
15 = fifteen
E4
nine = 9
E5
three = 3
E6
four = 4
F1
7
F2
14
F3
7
F4
14
F5
10
F6
11
F7
7
F8
14
F9
2
G1
26
G2
9 tens, 3 ones
H
+ → 17

Daily Practice 8

A
34, 35, 37
B
51, 50, 47
C1
22, 24
C2
30, 20
C3
40, 60
D1
91: 90, 92
D2
89: 88, 90
D3
93: 92, 94
E1
2 = two
E2
19 = nineteen
E3
15 = fifteen
E4
twenty = 20
E5
twelve = 12
E6
thirteen = 13
F1
16
F2
12
F3
19
F4
6
F5
1
F6
12
F7
3
F8
6
F9
14
G1
40
G2
5 tens, 0 ones
H
− → 12

Daily Practice 9

A
51, 55, 56
B
91, 87, 86
C1
20, 22
C2
50, 40
C3
60, 70
D1
91: 90, 92
D2
29: 28, 30
D3
54: 53, 55
E1
20 = twenty
E2
7 = seven
E3
5 = five
E4
six = 6
E5
thirteen = 13
E6
fourteen = 14
F1
20
F2
15
F3
6
F4
6
F5
3
F6
4
F7
12
F8
6
F9
8
G1
95
G2
9 tens, 6 ones
H
− → 6

Daily Practice 10

A
53, 55, 58
B
102, 98, 97
C1
14, 18
C2
55, 65
C3
40, 60
D1
75: 74, 76
D2
24: 23, 25
D3
63: 62, 64
E1
18 = eighteen
E2
15 = fifteen
E3
9 = nine
E4
five = 5
E5
seven = 7
E6
seventeen = 17
F1
11
F2
14
F3
16
F4
8
F5
6
F6
9
F7
13
F8
18
F9
7
G1
78
G2
8 tens, 5 ones
H
− → 9
Lia's Maths Book · Numbers to 100 and facts within 20 · liabooks.com/study24