Unit 5 Math Review

Random

100

(2 x 10) + (1 x 1) + (1 x 1/10) + (3 x 1/100) + (5 x 1/1000)

Write the decimal expanded form in STANDARD and WORD

Standard:

21.135

Word:

Twenty One and One Hundred and Thirty Five Thousandths

200

SELECT THE TRUE STATEMENTS:

a. 3.000 = 3

b. 0.97 > 1

c. 2.36 < 2.39

d. 0.002 = 0.02

e. 912.1 > 817.2

A, C, E

300

Rounding: DOUBLE POINTS

Round 1.636 to the nearest tenth 

Round 1.636 to the nearest hundredth

1.6

1.64

400

ROUNDING:

3.68 Round to the nearest whole number

3.68 Round to the nearest tenth

4

3.7

Adding Decimals

100

5.32 + 4.18=

5.32 + 4.18= 9.50

200

15.65 + 102.4=

15.65 + 102.4=118.05

300

3.41 + 0.49

3.41 + 0.49=3.90

400

456.3 + 2.38=

456.3 + 2.38=458.68

Subtracting Decimals

100

36.49 - 12.7=

36.49 - 12.7=23.79

200

321.56-18.2=

321.56-18.2=303.36

300

100.1-38.1=

100.1-38.1=62or 62.00

400

300.5-168.54=

300.5-168.54=131.96

Multiplying Decimals

100

5 x 0.7=

2x 0.4=

5 x 0.7= 3.5

2x 0.4= 0.8

200

0.2x6=

0.07x3=

0.2x6= 1.2

0.07x3=.21

300

3.2 x 0.5=

2.6 x 1.7=

3.2 x 0.5= 1.60

2.6 x 1.7=4.42

400

854.3 x 21=

854.3 x 21=17,940.3

Dividing Decimals

100

6 divided by 0.1

6 divided by 0.01

6 divided by 0.1 = 60

6 divided by 0.01 = 600

200

3 divided by .2= 

3 divided by .02=

3 divided by .2= 15

3 divided by .02= 150

300

0.4 divided by 2=

0.6 divided by 5=

0.4 divided by 2= 0.2

0.6 divided by 5= .30

400

DOUBLE POINTS: SOLVE BOTH

1.3 divided by 0.1

1.9 divided by 0.01

(130 divided by 10) = 13

(190 divided by 1)= 190