Large Multiplication
Number Theory
Level
2
What's the sum of the tens digit with the units digit in the result of the following multiplication?
The answer is 9.
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1 solution
You only need to make 4 9 × 6 9 = 3 3 8 1 .
The tens and units digit from this number is the same of the result from the other multiplication. Therefore the answer is 8 + 1 = 9 .