80*1
40*2
20*4
10*8
5*16
Multiply both numbers by 20 to read 80/100... 80/100 = 0.80
Those two numbers would be 80 and 40. 80*40=3200 80+40=120
To multiply mixed numbers, you need to convert them to improper fractrions, multiply and then convert them back to a mixed number. For example: 2 1/2 x 5 1/3 = 5/2 x 16 /3 numerator 5 x 16 = 80 denominator 2 x 3 = 6 so now you convert 80/6 into a mixed number 80 / 6 = 13 and 2/6 or, reduced, 13 1/3.
MULTIPLY BY 1.05 TO INCREASE BY 5%
You can multiply to numbers with decimals
160
80
-96
-1
I believe that means that you are supposed to multiply the numbers.
-82
They are 40 and 40
10 8
1680
1x80, 2x40, 4x20, 5x16, 8x10
-20 and 80 -20*80=-1600 -20+80=60
-1540