IXL | Estimate to compare sums and differences | 3rd grade math

or

Which sign makes the statement true?

Hint: Estimate to solve the problem faster.

63 + 12 74 − 19

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$Confetti$

Excellent!

Now entering the Challenge Zone—are you ready?

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Teacher tools

Work it out

Not feeling ready yet? These can help:

D.1Estimate sums by rounding: up to 1,000

E.1Estimate differences by rounding: up to 1,000

Lesson: Rounding numbers