Divide Mentally
Estimate the Quotient
Random
100
3600 / 40
90
100
3,396 / 82
3200 / 80 = 40
100
If you are going to divide 87.96 by 100, which way do you move the decimal point?
To the left
200
60,000/20
3,000
200
646 / 72
630 / 70 = 9 Or 640 / 80 = 8
200
If you are going to multiply 7.567 by 100, which way do you move the decimal point?
to the right
300
467/100
4.67
300
29,402 / 89
27,000/ 90 = 300
300
Divide, rounding the quotient to the nearest hundred. 38.46 / 28
What is 1.37
400
4/1,000
.004
400
79,529 / 38
80,000 / 40 = 2,000
400
Whithout dividing, which quotient do you know will be greater? 6,000 / 60 60,000 / 60 .6 / 60 6 / 40
60,000/ 60
500
25.3/100
.253
M
e
n
u