Estimate Sums Using Rounding

Flashcard
•
Mathematics
•
3rd Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What does it mean to round a number?
Back
Rounding a number means adjusting it to the nearest ten, hundred, or other place value to make it easier to work with.
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 is 5 or more, round up. If it is 4 or less, round down.
3.
FLASHCARD QUESTION
Front
Round 569 to the nearest ten.
Back
570
4.
FLASHCARD QUESTION
Front
Round 342 to the nearest ten.
Back
340
5.
FLASHCARD QUESTION
Front
What is the sum of 570 and 340 after rounding?
Back
910
6.
FLASHCARD QUESTION
Front
What is the halfway number between 180 and 190?
Back
185
7.
FLASHCARD QUESTION
Front
Round 314 to the nearest ten.
Back
310
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