# math

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Show at least two ways other than using a calculator to find Explain in writing why each makes sense.

• math -

Your question doesn't make any sense.

• math -

Sorry, the question is show at least two ways other than using a calculator to find 13 x 31. Explain in writing why each makes sense.

• math -

Straight multiplication using pencil and paper is one.

What is another way?

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