Quickly multiply any two two-digit numbers up to 20 x 20.
Example
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Step 1
Add the one's place digit from the smaller number to the larger number.
17 + 2 = 19
Step 2
Add a zero to the end.
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Step 3
Multiply the one's place digit of the two numbers.
7 x 2 = 14
Step 4
Add the results of steps 2 and 3 for the answer.
190 + 14 = 204
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