Math 3rd. Grade
Flashcard
•
English
•
3rd Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is place value?
Back
Place value is the value of a digit based on its position in a number. For example, in the number 2,643, the place value of 2 is thousands.
2.
FLASHCARD QUESTION
Front
What is the place value of the digit 2 in the number 2,643?
Back
The place value of the digit 2 in the number 2,643 is thousands.
3.
FLASHCARD QUESTION
Front
What is the sum of 724 and 275?
Back
The sum of 724 and 275 is 999.
4.
FLASHCARD QUESTION
Front
How do you round a number to the nearest ten?
Back
To round a number to the nearest ten, look at the digit in the ones place. If it is 5 or more, round up. If it is less than 5, round down.
5.
FLASHCARD QUESTION
Front
Round the number 28 to the nearest ten.
Back
28 rounded to the nearest ten is 30.
6.
FLASHCARD QUESTION
Front
What is estimation in math?
Back
Estimation is finding a number that is close enough to the right answer, often by rounding.
7.
FLASHCARD QUESTION
Front
Estimate the sum of 81 and 21 by rounding to the nearest ten.
Back
When rounded, 81 becomes 80 and 21 becomes 20. The estimated sum is 100.
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