Math Topic 8 Review

Flashcard
•
Mathematics
•
3rd Grade
•
Hard
+2
Standards-aligned
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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 a number that is close enough to the right answer, often used to make calculations easier.
2.
FLASHCARD QUESTION
Front
How do you round a number to the nearest hundred?
Back
Look at the tens digit: if it's 5 or more, round up; if it's 4 or less, round down.
Tags
CCSS.3.NBT.A.1
CCSS.4.NBT.A.3
3.
FLASHCARD QUESTION
Front
Estimate the difference of 765 - 333. Which equation is reasonable?
Back
770 - 330 = 440.
4.
FLASHCARD QUESTION
Front
Estimate the sum of 405 and 385 by rounding to the nearest hundred. What is the equation?
Back
400 + 400 = 800.
5.
FLASHCARD QUESTION
Front
What is mental math?
Back
Mental math is doing calculations in your head without using paper or a calculator.
6.
FLASHCARD QUESTION
Front
How do you round a number to the nearest ten?
Back
Look at the ones digit: if it's 5 or more, round up; if it's 4 or less, round down.
Tags
CCSS.3.NBT.A.1
CCSS.4.NBT.A.3
7.
FLASHCARD QUESTION
Front
What is the result of 634 - 528?
Back
106.
Tags
CCSS.2.NBT.B.7
CCSS.3.NBT.A.2
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