Question

Write a sentence about different ways to show subtraction for a problem like 32-15

Answer 1

Solution:

32 - 15=

If you will look at this problem, the greater number is positive integer and smaller number is negative integer, so just subtract smaller from larger one and put that sign before the result which larger integer bears.

You can write it as , - 15 + 32 , and you will get same result.

2. Method: By Marking -15 and 32 on  number line

Mark 15 and 32 on number line,start marking circles 1,2,3 from 16 to 31, as there will be 17 circles between 15 to 32, which is the result.

Answer 2

Proposed statement/question:
Jonathan has 32 math problems to do by the weekend.
On Thursday he completes 15 math problems. How many more math problems does Jonathan need to finish in order to be done before the weekend? 

The answer to this question would be as follows:
Total questions to answer is 32
Number of questions answered is 15
Number of questions left is unknown

Therefore:
Total questions to answer = questions answered + questions left
32 = 15 + questions left
questions left = 32 - 15