Word Problems
Rounding to +
Rounding to 10 to -
Rounding to 100 to -
100

Linda had 57 cookies for the bake sale.  Her mom baked 39 more and gave them to her.  About how many cookies does Linda have now?

(Round off to the nearest tens).

About 100 cookies

100

36 + 39

What is 80

100

92 - 26

What is 60

100

764 - 299 =

What is 500

200

Raul has $465.  Paul has $175 more.  How much do the 2 boys have together.   

Estimate to the nearest hundreds.

They have about $700.

200

44 + 59 =

What is 100

200

420 - 165 =

What is 200

300

Sara has 362 Pokemon cards. Bob has 137 cards.  About how many more Pokemon cards does Sara have that Bob?   

Estimate to the nearest hundreds.

What is about 300 cards.

300

459 + 182 = ?

What is 700

300

78 - 32

What is 50

300

762 - 333

What is 400

400

There are 79 chocolate chip muffins and 36 blueberry muffins.  About how many more chocolate chip than blueberry muffins are there?

There are about 40 more chocolate chip muffins.

400

341 +458 = ?

What is 900

400

972 - 251

What is 700

500

Luis has 278 American stamps.  He has 132 European stamps.  About how many stamps does he have altogether. 

Luis has about 400 stamps.

500

554 + 397 =

What is 1,000

500

83 - 46

What is 30

500

881 - 419 =

What is 500