The easiest way to do this question is not to think of it as multiplying by 0.2, but by multiplying it by two and then dividing it by ten. Thirty-two times two equals sixty-four, and sixty-four divided by ten equals six-point-four.
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Thirty Four
-6 multiplied by -2.8 is 16.8
Four times 10 -8 times two point four times 10^3 divided by three times 10 -7 is equal to -63,967
Negative four
Two point six tenths (2.6/10) is equal to twenty six hundredths (.26).