Addition
Subtraction
Multiplication
Division
Mental Math
100

3,482+5,769

9,251

100

3,482−1,205

2,277

100

47×6

282

100

282÷6

47

100

298+603

300+600=900

200

47,856+68,947

116,803

200

47,856 − 38,947

8,909

200

305×8=  

2,440

200

2,440÷8

305

200

4,901−1,997

4,900−2,000=2,900

300

A library has 128,450 books and receives 76,985 more. How many books does it have now?

205,435

300

A museum had 128,450 visitors in July. 76,985 were local residents. How many visitors were from outside the city?

51,465

300

A school prints 24 copies of a booklet for each club. There are 18 clubs. How many booklets are printed in total?

432

300

A school has 432 pencils and wants to share them equally among 18 classes. How many pencils does each class get?

24

300

49×21

50×20=1,000

400

3,456,789+2,345,678

5,802,467

400

6,543,210−3,456,789

3,086,421

400

276×34

9,384  

400

9,384÷34

276

400

203 ÷ 3

200 ÷  4 = 50


500

A fundraiser collected 2,345,678 dollars online, 1,234,567 at events, and 456,789 from sponsors. What is the total amount raised?

4,037,034

500

A warehouse had 2,345,678 tablets. It shipped 1,234,567 to stores and removed 56,789 damaged ones. How many tablets remain?  

1,054,322

500

A bakery packs 24 cookies in each box. If they fill 125 boxes, how many cookies do they pack altogether?

3,000

500

A store has 4,900 stickers. If each pack holds 25 stickers, how many full packs can they make?

196

500

27×$18≈

30×$20=$600