Addition
Subtraction
Rounding to Estimate
Addition Word Problems
Subtraction Word Problems
100

150+150=

300

100

350-150=

200

100

Solve the subtraction equation by rounding to the nearest 100. 


789-666=

800-700=100

100

Sarah ate 100 pizzas and 100 sodas. The next day, she ate 200 pizzas and 100 sodas.


How many pizzas and sodas did she have altogether?

Sarah had 300 pizzas and 200 sodas altogether. 

100
Eli wrote 800 books. He lost 500 of them. How many books does he have left?

Eli has 300 books left. 

200

270+820=

1,090

200

980-560=

420

200

Solve the subtraction equation by rounding to the nearest 100. 

889-223

900-200=700

200

Elijah had 670 puppies. The next day, he received 610 puppies. How many puppies does he have altogether?

1,280

200

Janaya received 890 gifts for her birthday. Her new cat Iris wrecked 740 of them. How many gifts does she have left? 

Janaya has 150 books left.

300

350+672=

1,022

300

7,500-3,500=

4,000

300

Solve the addition equation by rounding to the nearest 100. 

878+756=

900+800=1,800

300

Hadassah had 789 hockey cards. She then got another 567 hockey cards. How many hockey cards does she have now? 

Hadassah now has 1,356 hockey cards. 

300

AJ wrote 985 stories. She then lost 745 of them. 

How many stories does she have left?

AJ has 240 stories left. 

400

678+698=

1,376

400

986-795=

191

400

Solve the addition equation by rounding to the nearest 100. 


878+445

900+400=1,300

400

Abram drew 889 pictures on Monday and 665 pictures on Tuesday. How many pictures did he draw altogether? 

Abram drew 1,554 pictures altogether

400

Adam drew 998 comic books after school one day. The next day, the mice ate 765 of his comic books!

How many comic books does he have left?

Adam now has 233 comic books left. 

500

6,985+7,986=

14, 971

500

998-989=

9

500

Taylor sold 989 cups of coffee on Monday. The next day, he sold 786 cups of coffee. How many cups of coffee did he sell altogether?

Solve the equation by rounding to the nearest 100.

989+786=

1,000+800=1,800

500

Jackson and Alesha went shopping. This is what they bought:

10 shirts for $889

5 pants for $765

2 shoes for $876


How much money did they spend altogether? 

They spent $2,530 altogether. 

500

Uriah wanted to watch 985 movies after school. His mom didn't let him, and she told him that he could only watch 496 movies. How many movies does he have to watch in order to reach 985?

Uriah needs to watch 489 movies in order to reach 985 movies.