Question

Which expression is equivalent to 5 . 4 × 0 . 18 5.4×0.18?
A. ( 54 × 18 ) × ( 1 10 × 1 100 ) (54×18)×(110×1100)
B. ( 54 × 18 ) × ( 1 10 × 1 10 ) (54×18)×(110×110)
C. ( 5 . 4 × 0 . 18 ) × ( 1 10 × 1 10 ) (5.4×0.18)×(110×110)
D. ( 5 . 4 × 0 . 18 ) × ( 1 10 × 1 100 )

Answer 1

The correct answer to the above question is, without any doubt, answer D. The two terms only differ in where the powers of ten are multiplied in the term. The actual values (5.4 and 18) that determine the overall digits of the result (972) do not change.