6R Math: Unit 4 Decimals Review                                     Name__________________

Flowchart: Terminator: Master 4.25aPart A

1.   Write each number in standard form.

a)  4.75 million _____________________________          b)  4.43 billion ______________________

c)  46 and 9 thousandths ______________________         d)  27 thousandths ____________________

2.   Write each number in expanded form.

a)  288 thousandths                                                b) 9.644  

 c)  0.063                                                             d)  6 and 59 thousandths

3.   Fill each with <, >, or =. 

a)  47.256   □    47.28 b)  0.02   □  0.020 c) 9.756  □   9.73

                         

4.   Order the decimals from greatest to least.

a)  0.74, 0.747, 0.7                                         b)  3.004, 3.9, 3.04

5.   Estimate each sum or difference. (Show your work)

a)  6.67 + 9.321   b)  8.942 – 3.13    c)  15.107 – 7.98   d)  7.536 + 8.443
 ___________    ____________   ____________    ____________

6.   Add or subtract.

a)      7.307                 b)      0.646                  c)     12.081                      d)     2.589
      –  3.329                      –  0.138                       +  3.196                            + 9.632 


Unit Review continued

Flowchart: Terminator: Master 4.25b7.   Multiply or divide.

a)  7.284 ´ 1000 = ______               b)  8 ÷ 100 = ______                    c)  7 ´ 0.001 = ______

d)  83.26 ÷ 1000 = ______               e)  5.173 ´ 100 = ______             f)   4.2 ÷ 100 = ______

8.   Multiply.

a)   4.762                b)  0.673                 c)  6.138                       d)  8.607
      ´     4                     ´     9                     ´    15                           ´    12

9. Divide
a)    8|3.438                b)  3|2.367                   c)  12|6.996                      d)  8|7   

Part B

10. Find the missing digits.

        7.6
    ´        7
 .24

Unit Review continued

Flowchart: Terminator: Master 4.25c11. Draw a square with perimeter 8.4 cm.
Label the side lengths.

12. One kilogram of cherries cost $5.29. Babu bought 4 kilograms.
The clerk charged Babu $23.96.

a)  How did Babu know immediately that the clerk had made a mistake?

b)  How much did the clerk charge Babu for each kilogram?
Show your work.

c)  How much should the clerk have charged Babu for the cherries?
Show your work.