How do you do jump strategy for maths?

Answer 1

The method of jump strategy can be applied to both adding and subtracting.

If we use the sum 162 + 142 as an example:

We start with 162 then we jump by adding the first unit of 142 (which is 100) which gives us 262. Then we add the second unit of 142 (which is 40) which gives us 302. Then we add the final unit of 142 (which is 2) which gives us an answer of 304.

jump jump jump

162 --100--> 262 --40--> 302--2--> 304

Hope that makes sense.