Decimals Mid-Unit Test

Standard Form

100

three and five tenths

3.5

200

twenty and twenty-five hundredths

20.25

300

(3 x 1) + (4 x 0.1) + (9 x 0.01)

3.49

400

(8 x 100) + (3 x 1) + (9 x 0.01)

803.09

500

(8 x 1000) + (7 x 10) + (3 x 1) + (9 x 0.001)

8,073.009

Expanded Form

100

8.2

8 + 0.2

(8 x 1) + (2 x 0.1)

(8 x 1) + (2 x 1/10)

200

9.18

9 + 0.1 + 0.08

(9 x 1) + (1 x 0.1) + (8 x 0.01)

(9 x 1) + (1 x 1/10) + (8 x 1/100)

300

55.07

50 + 5 + 0.07

(5 x 10) + (5 x 1) + (7 x 0.01)

(5 x 10) + (5 x 1) + (7 x 1/100)

400

904.32

900 + 4 + 0.3 + 0.02

500

7341.4

7000 + 300 + 40 + 1 + 0.4

(7 x 1000) + (3 x 100) + (4 x 10) + (1 x 1) + (4 x 0.1)

(7 x 1000) + (3 x 100) + (4 x 10) + (1 x 1) + (4 x 1/10)

Word Form

100

7.1

seven and one tenth

200

8.90

eight and ninety hundredths

300

32.05

thirty-two and five hundredths

400

1.056

one and fifty-six thousandths

500

546.02

five hundred forty-six and two hundredths

Rounding and Comparing Decimals

100

Round to the nearest whole number.

5.6

6

200

Round to the nearest hundredth.

9.347

9.35

300

Round to the nearest tenth.

9.22

9.2

400

8.506 ___ 8.51

8.506 < 8.51

500

Order from least to greatest.

5.34, 5.91, 5.038, 5.154

5.038, 5.154, 5.34, 5.91

Place Value Relationships

100

Use "10 times" or "1/10 of".

5 is _______50

5 is 1/10 of 50

200

60 is ________ 6.

60 is 10 times 6

300

0.03 is _________ 3

0.3 is 1/100 of 3

400

4 x 10⁴ = 

40,000

500

3.2 x 10² =

320