Chapter one

Adding

100

200+?=1000

800

200

What is 300 + 900

1200

Subtracting

100

900-850

50

200

400-600

800

Multiplying

100

 360 x 4

940

200

370 x 4 

1480

Division

100

5 divided by 1

5

200

10 divided by 5

5

300

8 divided by 1

8

Rounding

100

2,220 rounded to the nearest hundred 

2,200

200

Round 1,320 to the nearest hundred 

1,300