The following items will test your knowledge of the material covered in this lesson. There is only one correct

answer for each item. When you complete the exercise, check your answers with the answer key at the end of

this subcourse. If you answer any items incorrectly, go back to the part of the lesson that contains the

information involved and study again.

1. What is the mathematical operation of multiplication used for?

A. The opposite of addition.

B. To unite two or more numbers or groups of objects of the same kind.

C. To find out how many times one number is contained in another.

D. To shorten the process of addition.

2. What should you do before you add or subtract mixed numbers?

A. Reduce them to improper fractions and find the LCD.

B. Change all of the denominators.

C. Move the decimal over to the right two places.

D. Change all of the multiplicands.

3. What is the first step in dividing decimals?

A. Move the decimal over to the right two places.

B. Divide the denominator into the numerator.

C. Move the decimal in the divisor over the number of spaces necessary to make it a whole number.

D. Move the decimal point as many places from the right as there were in both the multiplicand and the

multiplier.

4. What should you do before using a formula to determine area?

A. Multiply the length times the width.

B. Make sure that all measurements are in the same unit.

C. Make sure that the decimals are converted to percents.

D. Multiply the area of the base times the height.

5. Which of the following is the measurement of how much something will hold?

A. Volume.

B. Area.

C. Pi.

D. Circumference.

9-6

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