10
QuizMultiple Choice

Unit Test — Unit test

Question 10 • Common Core Math 7 A-IC

What is the first step when applying properties of operations to divide 73.85 by 4.1?

Answer
A
Multiply the divisor and dividend by 10.
B
Multiply the divisor and dividend by 100.
C
Divide the divisor and dividend by 10.
D
Divide the divisor and dividend by 100.

Explanation

To divide 73.85 by 4.1 using whole-number division, first make the divisor a whole number by moving its decimal one place to the right: 4.1 becomes 41. To keep the quotient unchanged, move the dividend’s decimal one place as well, which is the same as multiplying both numbers by 10. Therefore, the first step is to multiply the divisor and dividend by 10.

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