15
7 multiplyed by 4 equals 28
Two times eighty four is one hundred and sixty four
41
0.25 multiplyed by 2 = 0.5 multiplyed by pi =1.57
23
17 x 4
nothing but 11 multiplyed by 1 equals 11. 11x1=11
384
17 x 17
11.334102216194127600501976737404
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.
Four.