Question

What is the solution​

Answer 1

Answer 5

Number to be added to 39.587 to give 80.375 = 80.375 - 39.587

 8 0 . 3 7 5

- 3 9 . 5 8 7

 4 0 . 7 8 8

Therefore, 40.788 should be added to 39.587 to give 80.375.

Answer 6

Excess of 584.29 over 213.95 = 584.29 - 213.95

 5 8 4 . 2 9

- 2 1 3  . 9 5

 3 7 0  . 3 4

Therefore, the excess of 584.29 over 213.95 is 370.34.

Subtracting decimals

The method used to subtract decimals is similar to the method used to subtract whole numbers. The only difference is the decimal point. It needs to be put in the difference box, straight below the other decimal points, as I put in the answers. :D