division
Round then multiply
Facts
doubles
zero rule
100

90 divided by 3 

what is 20?

100

33 x 45

30 x 50 = 150

100

9 x n = 81

n = 9 

9x9 =81 

100

6 x 6 = n 

36

100

30 x 45 

1350

200

 851 divided by 5 

what is 175 r 1?

200

79 x 12 

80 x 10 = 800

200

12 x 3 = n 

n = 36 

12 x 3 = 36

200

4 x 4 = n 

16

200

55 x 30 

1650

300

77 divided by 7

what is 11?

300

63 x 37 

60 x 40 = 2400

300

7x 4 = n 

n = 28 

7 x 4 = 28

300

8 x 8 = n 

64

300

50 x  7 

350 

400

daily double (60 seconds)

154 divided by 4 

what is 38 r 2?

400

89 x 15

90 x 20 = 1800

400

6 x n = 24 

n = 4 

6 x 4 = 24 

400

Daily double (60 seconds) 

13 x 13 = k 

k = 169

400

70 x 77 

5390

500

If 120 divided by 12 is 10, 


then 1200 divide by 12 is ____. 

what is 100?

500

99 x 35 

100 x 40 = 4,000

500

53 x n = 5300

n = 100

53 x 100 = 5300

500

12 x 12 = n 

n = 144 

500

90 x 55

4950