Question

Martha estimated the quotient of −71.81 and −8.02 using rounding to the nearest whole number. 9 StartLongDivisionSymbol 72 EndLongDivisionSymbol minus 72 = a remainder of 0 and quotient of 8. What was Martha's error? She should have rounded the dividend to 70. She should have rounded –8.02 to –8. She should have divided 8 by 72. She did not make an error.

Answer 1

Answer:

(b) She should have rounded –8.02 to –8

Step-by-step explanation:

Given

See attachment for long division

Required

Her error

Ignoring the minus sign,

Her approximation is as follows:

$-71.81 \approx 72$

$-8.02 \approx 9$

Her approximation of -8.02 is wrong

Because:

$-8.02 \approx 8$

Hence (b) is correct

Answer 2

B (she should have rounded –8.02 to –8)

Step-by-step explanation:

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