Addition
Subtraction
Regrouping
Subtract Across Zeros
Word Problems
100

10 + 78 = ?

88

100

58 - 12 = ?

46

100

12 + 69 = ?

81
100

80 - 32 = ?

48

100

Director James directed a short film which ran for 48 minutes. During the editing process, 52 minutes were added. What is the final running time of the film, after editing?

100 minutes

200

754 + 235 = ?

989

200

892 - 710 = ?

182

200

843 - 235 = ?

608

200

700 - 256 = ?

444

200

An animal care society tested 356 pet animals. 127 were infected by diseases. What is the number of healthy pet animals that participated in the medical tests?

229 healthy pets participated in the medical tests

300

1,234 + 1,253 = ?

2,487

300

1,578 - 1,462 = ?

116

300

8,924 + 2,167 =?

11,091

300

8,000 - 2,679 = ?

5,321

300

A movie rental shop has 5,416 old DVDs and 6,986 new DVDs. What is the total number of DVDs in the shop?

There are 12,402 DVDs in the shop

400

12,740 + 10,016 = ?

22,756

400

12,987 - 11,534 = ?

1,453

400

35,453 - 26,947 = ?

8,506

400

80,000 - 35,857 = ?

44,143

400

The average distance from earth to the sun is 589, 230 miles. The distance from earth to the moon is 350,373 miles less than the distance from earth to the sun. Find the distance from earth to the moon.

238,857 miles

500

231,496 + 715,202 = ?

946,698

500

645,982 - 132,721 = ?

513,261

500

943,687 - 786,948 = ?

156,739

500

700,000 - 357,943 = ?

342,057

500

In the Greensboro library, there are 398,456 books. Management decided to get rid of 167,876 of those books. How many books will be left in the library?

230,580 books will be left in the library

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