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STEPS
TOOLS
First get your paper and write your sum on the right side of the paper.

First get your paper and write your sum on the right side of the paper.

Next times the top number by 10 and write it on the left.

Next times the top number by 10 and write it on the left.

Now half it and write the number below it

Now half it and write the number below it

Next add the numbers together and that's the answer

Here's the sum on a calculator. 238

Here's the sum on a calculator. 238

X 15

X 15

= 3570

= 3570

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  • 1.0 Sheet of paper
  • 1.0 Pencil