Question

Which strategy below would NOT get you an

accurate estimation of 33% of 146.7?
A) Round the percent and find 30% of 146.7
B) Round the number and find 33% of 150
C) Use benchmark percent and find 50%
of 146.7
D) Round the percent and number and
find 30% of 150
E) All of them would be an accurate
estimation,

Answer 1

C) Use benchmark percent and find 50%

• of 146.7

Explanation:

Accurate estimation of 33% of 146.7

A) Round the percent and find 30% of 146.7

• Acceptable, rounded down the %

B) Round the number and find 33% of 150

• Acceptable, rounded up the number

C) Use benchmark percent and find 50%

of 146.7

• NOT acceptable as 50% is too much for 33%

D) Round the percent and number and

find 30% of 150

• Acceptable, both % and the number rounded

E) All of them would be an accurate estimation

• No, option C only