I.1
사칙연산 섞어서
3분기 (2~4월)두 자리 수 덧셈·뺄셈과 10 × 10까지의 곱셈·나눗셈을 섞어서 풀기
난이도
보통
문제 수
Add, Subtract, Multiply & Divide
Skill I.1 · Mixed operations & unknowns · ★★☆ Medium · Quarter 3
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Score/ 12
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Solve. Check each sign before you start.
Example
Think: Look at the sign first. Add and subtract by place value; multiply and divide with the facts.
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Answer Key
I.1 Add, Subtract, Multiply & Divide · ★★☆ Medium
- 110
- 251
- 30
- 47
- 515
- 64
- 78
- 844
- 90
- 1010
- 1130
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