워크북 · 세트 3

Lia's Maths Book워크북 — 2·5·10·3씩 뛰어 세기

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1쪽 · 표지
YEAR 2 · MATHS

Lia's Maths Book

Place Value · Count in steps

0510152025+5+5+5+5+5
Same jump every time: 5, 10, 15, 20, 25.
  • Part 1 · Count in 2s
  • Part 2 · Count in 5s and 10s
  • Part 3 · Patterns on a hundred square
  • Part 4 · Count back
  • Part 5 · 10s from any number
  • Part 6 · Will you say it?
  • Challenge · Count in 3s
2쪽 · Part 1 · Count in 2s지도서: Count in 2s, 5s and 10s →이 쪽 인쇄
Part 1

Count in 2s

Today I will: count in 2s from 0.

Maths words todaycount in 2spairsWhat comes next?
Look!
4 pairs of socks

What are we counting in? Socks come in pairs.

So we count in 2s: 2, 4, 6, 8.

4 pairs make 8 socks.

2, 4, 6, 8

1

How many socks? Count in 2s.

a
socks
b
socks
2

Count in 2s. Fill in the missing numbers.

a
2s024814
b
2s14162024
c
2s424450

After 18 comes 20. After 48 comes 50.

3

Pairs or socks? Read each question carefully.

a
There are 6 pairs of socks. How many socks?socks
b
There are 10 socks. How many pairs?pairs

Pairs and socks are two different numbers.

Say it! pairs make socks. I know because .
3쪽 · Part 2 · Count in 5s and 10s지도서: Count in 2s, 5s and 10s →이 쪽 인쇄
Part 2

Count in 5s and 10s

Today I will: count in 5s and 10s with the same jump every time.

Maths words todaycount in 5scount in 10sjump
Look!
0510152025+5+5+5+5+5
5 jumps of 5 land on 25.

Start at 0. The first jump lands on 5.

Same jump every time!

5 jumps, but we land on 25.

Same jump every time!

1

Each hand has 5 fingers. How many fingers? Count in 5s.

a
fingers
b
fingers
2

How much money? Count in 10s.

a
10p10p10p10p10p10p
p
b
10p10p10p10p10p10p10p10p10p
p
3

Fill in the missing numbers. Same jump every time.

a
5s051530
b
5s354055
c
10s01030
d
10s405070100
4

Complete the number line.

a
02550
b
050100
Say it!Each jump is . I land on . I know because .
Play Number Games: 2s, 5s and 10s
4쪽 · Part 3 · Patterns on a hundred square지도서: Count in 2s, 5s and 10s →이 쪽 인쇄
Part 3

Patterns on a hundred square

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

Maths words todayhundred squarepatternones digit
Look!
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950
The 5s go straight down in two lines.

The 10s all end in 0.

The 5s end in 5 or 0.

From 0, the 2s end in 0, 2, 4, 6 or 8.

What do you notice?

1

What comes next?

a
In 2s: 44, 46, 48,
b
In 5s: 55, 60, 65,
c
In 5s: 80, 85, 90,
d
In 10s: 70, 80, 90,

Check with the pattern. Does your number end in the right digit?

2

Colour the numbers you say when you count in 2s from 0.

What do you notice? Tell a grown-up.

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100
Say it!When I count in 5s, the ones digit is or . I know because .
5쪽 · Part 4 · Count back지도서: Count on and back from any number →이 쪽 인쇄
Part 4

Count back

Today I will: count back in 2s, 5s and 10s.

Maths words todaycount backstartjump
Look!
2025303540−5−5−5
Start at 40. Count back in 5s: 35, 30, 25.

40 is the start. It is not a jump.

Jump first. Then say the number.

40, 35, 30, 25

1

Count back. Fill in the missing numbers.

a
2s2018148
b
2s545246
c
5s656050
d
10s1009070

Going back across a ten: 52, 50, 48.

2

Count back to find the answer.

a
Kit has 20 seeds. She plants 2 seeds each morning. How many are left after 4 mornings?seeds
b
Dev has 80p in 10p coins. He spends one coin at each match. How much is left after 3 matches?p
Say it!I start at . I count back in : , , .
6쪽 · Part 5 · 10s from any number지도서: Count on and back from any number →이 쪽 인쇄
Part 5

10s from any number

Today I will: count on and back in 10s from any number.

Maths words todayten moreten lessones digithundred square
Look!
1727374757
17, 27, 37, 47, 57

Ten more is straight down on a hundred square.

The ones digit stays the same: 7.

Ten less is straight up.

Ten more is straight down.

1

Fill in the pieces of the hundred square.

a
45
b
62
c
88

Down is 10 more. Up is 10 less.

2

Count on or back in 10s. Fill in the missing numbers.

a
10s81838
b
10s415181
c
10s968666
d
10s695929
3

Ten more or ten less?

a
Ten more than 64 is
b
Ten less than 52 is
c
Ten less than 18 is
Say it!From , ten more is . I know because the ones digit stays .
Play Number Games: 2s, 5s and 10s
7쪽 · Part 6 · Will you say it?지도서: Count on and back from any number →이 쪽 인쇄
Part 6

Will you say it?

Today I will: use patterns to check a count, and fix a friend's count.

Maths words todaypatternones digitexplain
Look!

Will you say 35 if you count in 10s from 0?

From 0, the 10s end in 0. 35 ends in 5.

So no! 30, 40 — the jump goes over 35.

Start at your number. Keep the same jump.

1

Complete the number line. Then answer the question.

a

Count in 2s from 0. Will you say 13?

01020
b

Count in 5s from 0. Will you say 30?

050
2

Fill in the missing numbers. Then say yes or no.

a

Count in 10s from 4. Will you say 34?

10s41444
b

Count in 5s from 0. Will you say 52?

5s404560
3

Think about it. Is the friend right? Tell a grown-up why.

a

Ada counts in 5s: 5, 10, 15, 20, 30. Is Ada right? Fix her count.

5s5101520
b

Finn counts in 10s from 28: 28, 30, 40, 50. Is Finn right? Fix his count.

10s28
Say it!Will I say ? . I know because .
8쪽 · Challenge · Count in 3s지도서: Count in 3s →이 쪽 인쇄
Challenge

Count in 3s

Today I will: count in 3s, forwards and back.

Maths words todaycount in 3s
Look!
4 groups of 3

Count in 3s: 3, 6, 9, 12.

Same jump every time!

3, 6, 9, 12

1

Each tricycle has 3 wheels. How many wheels? Count in 3s.

wheels
2

Complete the number line. Count in 3s.

01530
3

Fill in the missing numbers.

a
3s039
b
3s121524
c
3s302718
Say it!Count in 3s from 0 to 30. Then count back to 0.
정답 · Answers

Answers

Part 1 · Count in 2s

1a
16
1b
18
2a
6, 10, 12
2b
18, 22, 26
2c
46, 48, 52
3a
12
3b
5

Part 2 · Count in 5s and 10s

1a
35
1b
45
2a
60
2b
90
3a
10, 20, 25
3b
45, 50, 60
3c
20, 40, 50
3d
60, 80, 90
4a
10, 20, 35, 45
4b
20, 40, 70, 90

Part 3 · Patterns on a hundred square

1a
50
1b
70
1c
95
1d
100
2
2, 4, 6 … 100. Every other column. They end in 0, 2, 4, 6 or 8.

Part 4 · Count back

1a
16, 12, 10
1b
50, 48, 44
1c
55, 45, 40
1d
80, 60, 50
2a
20 is the start. Count back in 2s: 18, 16, 14, 12. 12 seeds are left.
2b
80p is the start. Count back in 10s: 70, 60, 50. 50p is left.

Part 5 · 10s from any number

1a
up 35, left 44, right 46, down 55
1b
up 52, left 61, right 63, down 72
1c
up 78, left 87, right 89, down 98
2a
28, 48, 58
2b
61, 71, 91
2c
76, 56, 46
2d
49, 39, 19
3a
74
3b
42
3c
8

Part 6 · Will you say it?

1a
No. 12, 14 — the jump goes over 13. From 0, the 2s end in 0, 2, 4, 6 or 8.
1b
Yes. 25, 30, 35. The 5s end in 5 or 0.
2a
Yes. Counting in 10s from 4, the ones digit stays 4.
2b
No. 50, 55 — the jump goes over 52. The 5s end in 5 or 0.
3a
No. Ada changed her jump to 10. Same jump every time: 20, 25, 30.
3b
No. Finn jumped to the tens. Ten more is straight down: 28, 38, 48, 58.

Challenge · Count in 3s

1
15
2
6, 12, 21, 27
3a
6, 12, 15
3b
18, 21, 27
3c
24, 21, 15
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