What is estimating sums?
Estimate Sums
Flashcard
•
Mathematics
•
3rd - 4th Grade
•
Hard
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16 questions
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1.
FLASHCARD QUESTION
Front
Back
Estimating sums means finding a close value to the actual sum by rounding numbers before adding them.
2.
FLASHCARD QUESTION
Front
How do you round a number to the nearest ten?
Back
Look at the digit in the ones place. If it's 5 or more, round up. If it's 4 or less, round down.
3.
FLASHCARD QUESTION
Front
Round 123 to the nearest ten.
Back
120
4.
FLASHCARD QUESTION
Front
Round 12 to the nearest ten.
Back
10
5.
FLASHCARD QUESTION
Front
What is the estimated sum of 123 and 12 when rounded to the nearest ten?
Back
130
6.
FLASHCARD QUESTION
Front
What is 138 rounded to the nearest ten?
Back
140
7.
FLASHCARD QUESTION
Front
Round 31 to the nearest ten.
Back
30
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