Grade 6

End-of-Unit Assessment

Unit 5 Assessment - Decimal Operations

Find the product: (0.061)(0.43)(0.061) \boldcdot (0.43)

Answer: 0.02623

For part of a science experiment, Andre adds 0.25 milliliters of food coloring to 12.3 milliliters of water. How many milliliters does the mixture contain?

A.
12.05
B.
12.325
C.
12.55
D.
14.8

Answer: C

Four runners are training for long races. Noah ran 5.123 miles, Andre ran 6.34 miles, Jada ran 7.1 miles, and Diego ran 8 miles.

  1. What is the total running distance of the four runners?

  2. Compared to Noah, how much farther did Jada run?

Answer:

  1. 26.563 miles
  2. 1.977 miles

One way to compute a 15% tip for a bill is to multiply it by 0.15.

A restaurant bill was $42.40. Calculate the tip. Explain or show your reasoning.

Answer:

$6.36. Sample reasoning: I multiplied 42.40 by 0.1 to get 4.24 and then found half of that to get (0.05)(42.40)=2.12(0.05) \boldcdot (42.40) = 2.12. Then I added the two answers to get $6.36.

A woodworker wants to cut a board that is 8.225 feet long into 5 equal-length pieces. How long will each piece be?

A.

0.1645 foot

B.

1.645 feet

C.

4.1125 feet

D.

41.125 feet

Answer:

1.645 feet

The list below shows the cost of the same candle at two different stores.

  • Store ABC sells 6 of these candles for $12.00.
  • Store XYZ sells 8 of these candles for $14.00.

Which store sells the candle for a lower unit rate?

Explain how you determined your answer.

A diagram of a rectangular flag, with a shaded section, is shown below.

9 cm5 cm4.5 cm
Triangle area formula: A = 1/2 bh

What is the area, in square centimeters, of the shaded section of the flag?

Show your work.

Answer: ______ square centimeters

A tutoring company charges $25.00 per hour to tutor a student. How many hours of tutoring would cost $62.50?

A. 2122\frac{1}{2}
B. 3123\frac{1}{2}
C. 371237\frac{1}{2}
D. 871287\frac{1}{2}

Answer:

A