Mental Math
Estimation
Division
The First Digit in the Quotient
100

42,000 /  70 =

600

100

168 / 45 = 

160 / 40 = 4

200 / 40 = 5

100

653 / 50 =

13 R3

100

966 / 14 = 

Tens Place

200

81,000 /  900 = 

90

200

525 / 96 = 

540 / 90 = 6

500 / 100 = 5


200

849 / 90 = 

9 R39

200

5,123 / 95 = 

Tens Place

300

4,800 /  6 = 

800

300

748 / 92 = 

720 / 90 = 8


300

840 / 60 =

14

300

8,164 / 26 = 

Hundreds Place

400

540,000 / 9,000 = 

60

400

6,734 / 75 = 

6,300 / 70 = 90

6,000 / 60 = 100

7,000 / 70 = 100

400

3,549 / 12 = 

295 R9

400

612 / 68 = 

Ones Place

500

3,500,000 / 7,000 = 

500

500

2,740 / 67 =

2,400 / 60 = 40

3,000 / 60 = 50 

500

5,825 / 42 = 

138 R29

500

45,893 / 9 = 

Thousands Place

M
e
n
u