Estimate Sums & Differences
Flashcard
•
Mathematics
•
3rd - 4th Grade
•
Hard
Standards-aligned
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is estimation in math?
Back
Estimation is a way to find an approximate value that is close to the exact answer, often used to make calculations easier.
2.
FLASHCARD QUESTION
Front
How do you estimate a sum to the nearest ten?
Back
Round each number to the nearest ten and then add them together.
3.
FLASHCARD QUESTION
Front
Estimate the sum: 312 + 456 (to the nearest ten).
Back
310 + 460 = 770.
4.
FLASHCARD QUESTION
Front
What is the nearest hundred?
Back
The nearest hundred is the multiple of 100 that is closest to a given number.
Tags
CCSS.3.NBT.A.1
CCSS.4.NBT.A.3
5.
FLASHCARD QUESTION
Front
Estimate the difference: 793 - 328 (to the nearest hundred).
Back
800 - 300 = 500.
6.
FLASHCARD QUESTION
Front
How do you estimate a difference to the nearest hundred?
Back
Round each number to the nearest hundred and then subtract.
7.
FLASHCARD QUESTION
Front
Estimate the difference: 749 - 362 (to the nearest hundred).
Back
700 - 400 = 300.
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