Friday 6 March 2020

Compensating

Compensating in maths is the procedure of giving an amount of numbers to make the other number tidy. For example: 78 + 80 = ???. I add 2 to 78 to round it to 80 then I add 80 to 80 which is 160. After that I  subtract 2 from 160 which leaves me with 158. 158 is the answer.

In the slide show I showed six examples of compensating. I also made a number line as a visual example. Compensating is a faster and easier strategy rather than just adding an equation like '78 + 80' together.

LI: To solve addition and subtraction equations by compensating with tidy numbers.

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