How do you do chunking in maths?

Answer 1

Chunking is a mental strategy used in maths to make certain kinds of problems easier.

Instead of adding

76

+34

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Let's see, 6 + 4 is ten, so write the zero down, then carry the one, then 7+3 is ten, but add the one that's 11, so write down 1, and then carry the one, and then write down the one. You get the correct answer, 110, but there is a simpler way to do it.

Think 70+30 = 100 ; 6+4 = 10 ; 100+10 = 110

It also works with subtraction

110

-97

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Think 100 - 90 leaves 10 10-7 leaves 3 add what is left: 10+3=13