C.2
곱셈 어림하기
1분기 (9~11월)큰 수를 반올림한 뒤 곱해서 곱 어림하기
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문제 수
Estimate Products
Skill C.2 · Estimation · ★★☆ Medium · Quarter 1
- Name
- Date
Score/ 8
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Round each number to the place shown, then estimate.
Example
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Think: Round the bigger factor, then use a basic fact: , so .
- 1Nearest ten:
- 2Nearest ten:
- 3Nearest ten:
- 4Nearest ten:
- 5Nearest hundred:
- 6Nearest ten:
- 7Nearest hundred:
- 8Nearest hundred:
Answer Key
C.2 Estimate Products · ★★☆ Medium
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