Topic 6 Test Review

Estimation

100

Estimate Each Quotient:

7/ 0.85=

7/1= 7

200

Estimate the Quotient:

91.02/ 4.9=

90/5=18

300

Estimate the Quotient:

17.7/ 3.2= 

18/ 3= 6

400

Luci's mother gave her $7.50 to buy 8 spiral notebooks. With tax, the cost of each notebook is $1.05. Does Luci have enough money? Use compatible numbers and estimation to help you decide. 

No; Round $1.05 to $1. Lucy would need at least 8 x 1= $8 

500

      A soccer team spent $222 on 12 new soccer balls. Each ball cost the same.

A.  Estimate the cost of each soccer ball. Write an equation to show your work.

10/ 200= 20

Recognizing Patterns in dividing

100

370.2/ 10²⁼

3.702

200

864/ 10³⁼ 

0.864

300

7,700/ 10²⁼

77

400

4,600/10=

460/ 10=

46/10=

4.6/10=

460

46

4.6

0.46

500

98.6 /1= 

98.6/ 100=

98.6 /10 =

98.6 / 1,000= 

98.6

0.986

9.86

0.0986

Divide by a decimal

100

2/0.5= 

4

200

6.6/ 0.3= 

22

300

256/ 4= 

64

400

6.24/ 0.06= 

104

500

27.5/ 2.5= 

11

Divide by a whole number

100

1.76/ 8= 

0.22

200

5.36/ 2=

2.68

300

4.71/3 =

1.57

400

4/ 5.72=

1.43

500

91.8/ 27=

3.4