Decimals Review

Decimal Equivalents

100

2/10

.20

200

5/100

.05

300

25/10

2.5

400

753/100

7.53

500

2575/10

257.5

Simplified Fractions

100

.5

1/2

200

.25

1/4

300

.75

3/4

400

.48

12/25

500

6.75

27/4

Comparing Decimals

100

.1 ____ .01

>

200

.17 _____ 1.7

<

300

9.82 _____ 9.28

>

400

3/4 _____ .25 _____ 5 Tens

>  <

500

Twenty three hundredths ___ .1 ____ 7/8 ___1.23 

>  <  < 

Rounding/Estimating

100

5.71 rounded to the nearest whole number is

6

200

12.60 rounded to the nearest tenth is

12.6

300

The volume of water in a jug is 3.46 liters. Round the volume of water to the nearest liter.

4

400

23.99 round to the nearest whole number and tenth

24, 24

500

Round $19.45 to the nearest dollar and to the nearest ten cents.

$20, $19.50

Challenges

100

John's height is 1.1 meters when rounded to the nearest tenth. What could his height be?

1.05, 1.06, 1.07, 1.08, 1.09, 1.1, 1.11m, 1.12m 1.13m 1.14m (1.05-1.14m)

200

Louis had some money. He spent $0.75 on a notebook, $0.25 on an eraser, and $0.08 on a ruler. He had $0.20 left. How much money did he start with?

$2 

.20 + .80 = 1.00

.25 + 1.00 = 1.25

.75 + 1.25 = 2.00

300

Paul is .86 meters tall. George is .2 meters taller than Paul but .05 meters shorter than Leon. How tall is Leon?

1.11 meters tall

.2 + .86 =1.06

.05 + 1.06 = 1.11

Leon is 1.11 meters tall

400

Free Points :)

400

500

Tricky.... -500

-500