With this way, make a number line, beginning with the number we are using to subtract and ending with the number we are subtracting from. For example, in 186-79, we begin the number line with 79 because it is the number we are using to subtract. We will have the number line ending with the number we are subtracting from, in this case that is 186.

Then by using addition to help us figure out the problem more easily, we jump to easier numbers. For example, we start at 79, and we jump one to 80. Then from 80, we can jump more easily to 100, and then jump to 186.

Lastly, we add up all the jumps. So we add one, twenty, and eighty-six.

How many jumps are taken to get to easier numbers?