Question

What's 99.1 ×0.16 (must show work)

Answer 1

99.1
x0.16

6(1)=6
6(9)=54. Put down the 4 and carry the 5.
6(9)=54+5= 59.

You work in reverse, so our last number should be first and our first number last. So the first number is: 5946

Our next row, we put down a 0 and then continue.
1(1)=1
1(9)=9
1(1)=9

Our second number is 9910.

Add the two: 5946+9910=15856

Count the number lf decimal places. In this case, three. Move the decimal 3 places left: 15.856

I always double check using a calculator.

**Sorry the methods it's written out in isn't better, but I can't upload pictures. Hope it helps.

Answer 2

The answer is:  " 18.856 " . 
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Explanation:
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Here is ONE method:
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Given:
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           99.1 
      *   0.16
     ____________
  =       ?
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Here is one way to approach the problem—
      (Note:  Work is shown in this explanation; as dictated by the actual
                  question being asked.) ; 
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      →   Write problem as:
__________________________
        991
      *  16
_________    →  and solve;  
      5946
+    991     
_________
    15856 ; 
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Then, taking the number; "15856",  we move the decimal; or "implied decimal point"; ending after the last digit, "6";  ; back 3 (THREE) spaces;
   since the original problem is:  "99.1 * 0.16 ;  as such, we move the "implied decimal point" back "1 (ONE) space;  to account for the fact that we used "991" in lieu of the actual value {"99.1"} ; and we move the "implied decimal point" back 2 (TWO) additional spaces''; to account for the fact that we used "16" in lieu of the actual value {"0.16"}.
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     → As such, we take:  " 15856." ;  and move the "implied decimal point" ending after the number, "6";  back three spaces, to get:  " 15.856 ".
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Let us check our answer by using a calculator:
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     →  99.1  *  0.16  =?  18.856 ?? ;  Yes!
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