Topic 8 Review-EnVision Math 3rd Grade

Front

What is the sum of 243, 132, and 157?

Back

532

Front

Subtract 382 - 148 mentally. What should you do first?

Back

Add 2 to 148 and add 2 to 382.

Front

Use mental math to add 332 and 154. How to break apart the numbers into hundreds, tens, and ones?

Back

Break 332 into 300 + 30 + 2. Break 154 into 100 + 50 + 4.

Front

634 - 528

Back

106

Front

Check subtraction of 169 - 57 = 112 using inverse operations.

Back

Add 57 and 112.

Front

Estimate the sum of 405 and 385 by rounding to the nearest hundred.

Back

800

Front

Use inverse operations to check: 456 - 342 = 114

Back

114 + 342 = 456

Front

Subtract 341 - 97 mentally. First add 3 to 97 to get 100. What should the next step be?

Back

Add 3 to 341. The difference is 244.

Front

Round 668 to the nearest hundred.

Back

700

Front

Round 404 to the nearest hundred.

Back

400