수학 단어 사전 Maths words A to Z

after / before

the number next up / next down

“After 39 is 40. Before 40 is 39.”

뜻 바로 다음 수 / 바로 앞의 수

altogether

all of them together

“3 red and 4 blue. 7 altogether.”

뜻 모두 합해서

B

bar model

a picture with bars for the whole and the parts

뜻 막대 모델(전체와 부분을 막대로 그린 그림)

between

in the middle of two numbers

“48 is between 47 and 49.”

뜻 두 수 사이에 있는

bond (number bond)

two numbers that make a number

“3 and 7 is a bond to 10.”

뜻 모아서 한 수가 되는 두 수(예: 10의 보수)

C

compare

look at two numbers to see which is bigger

“Compare 12 and 8.”

뜻 비교하다(어느 수가 더 큰지 보기)

count on / count back

count forwards / backwards

count forward (+) or backward (−) from a number

“Count on from 57.”

뜻 이어서 앞으로 세기 / 거꾸로 세기

counter

a small round thing for counting

뜻 수 세기 칩(세는 데 쓰는 작고 둥근 물건)

D

difference

how much bigger one number is than another

“The difference between 12 and 8 is 4.”

뜻 차(두 수의 차이)

digit

0 1 2 3 4 5 6 7 8 9

one of 0, 1, 2, 3, 4, 5, 6, 7, 8, 9

“46 has two digits.”

뜻 숫자(수를 쓰는 0부터 9까지의 글자)

double

the same number twice

the same number added twice

“Double 8 is 16.”

뜻 같은 수를 두 번 더하기, 두 배

E

equal to ( = )

the same as

“14 = 7 + 7”

뜻 같다(등호)

equals ( = )

is the same as

“4 + 6 = 10”

뜻 같다, 등호(=)

even / odd

even numbers are in the 2s count from 0; odd numbers are the ones in between

“2, 4, 6 are even. 1, 3, 5 are odd. (Year 2 words)”

뜻 짝수 / 홀수

F

fact family

4 facts with the same 3 numbers

“9 + 4 = 13, 4 + 9 = 13, 13 − 4 = 9, 13 − 9 = 4”

뜻 수 가족(같은 세 수로 만드는 덧셈 2개·뺄셈 2개)

fewer / less

a smaller number

“3 fewer than 8 is 5.”

뜻 더 적은, 덜

fewer / less / least

a smaller amount / the smallest

“5 is less than 8.”

뜻 더 적은 / 가장 적은

L

left

still here after some go

“8 take away 3. 5 are left.”

뜻 남은(덜어 내고 남은 것)

M

make 10

use a bond to 10 to help add

“8 + 5 = 8 + 2 + 3”

뜻 10 만들기(먼저 10을 만들어 더하기)

minus ( − )

the sign for subtract

“8 minus 3 is 5.”

뜻 빼기, 빼기 기호(−)

missing number

the number in the empty box

“7 + □ = 10. The missing number is 3.”

뜻 빈칸에 들어갈 수

more / most

a bigger amount / the biggest

“8 is more than 5.”

뜻 더 많은 / 가장 많은

more than

a bigger number by this much

“3 more than 5 is 8.”

뜻 ~보다 (얼마만큼) 더 큰

N

number line

a line with numbers in order

뜻 수직선

number sentence

numbers and signs that make a fact

“9 − 2 = 7”

뜻 식(수와 기호로 쓴 수학 문장)

numeral

a number written in digits

“17 (the word is seventeen)”

뜻 숫자로 쓴 수

O

one more / one less

the number after / before

“One more than 99 is 100.”

뜻 1 큰 수 / 1 작은 수

ones

single units; the right digit in a 2-digit number

“34 has 4 ones.”

뜻 일의 자리(낱개)

ones / tens

the right digit / the left digit

“46 = 4 tens and 6 ones”

뜻 일의 자리 / 십의 자리

P

pair

two things that go together

“a pair of socks”

뜻 짝, 한 쌍

part / whole

parts put together make the whole

“Parts 9 and 4, whole 13.”

뜻 부분 / 전체

partition

split a number into parts

“Partition 5 into 2 and 3.”

뜻 가르기(수를 부분으로 나누기)

pattern

numbers that change in the same way

something that repeats or changes in a regular way

“5, 10, 15, 20”

뜻 규칙, 같은 방식으로 바뀌는 수의 배열

place value

a digit's value depends on its place

“In 34, the 3 is worth 30.”

뜻 자릿값

plus ( + )

the sign for add

“5 plus 3 is 8.”

뜻 더하기, 더하기 기호(+)

R

S

subtract

take a number away

“Subtract 3 from 8. You get 5.”

뜻 빼다, 뺄셈

sum

the answer when we add

“The sum of 5 and 3 is 8.”

뜻 합(더한 결과)

T

take away

remove some

“8 take away 3 is 5.”

뜻 덜어 내다, 빼다

ten frame

a box with 10 spaces

뜻 10칸 상자(5칸씩 두 줄인 틀)

tens

groups of ten; the left digit in a 2-digit number

“34 has 3 tens.”

뜻 십의 자리(10씩 묶음)

total

the number of all of them together

“The total is 10.”

뜻 합계, 모두 몇 개

true / false

right / not right

“6 + 4 = 10 is true.”

뜻 맞다 / 틀리다(참 / 거짓)