mental math . . .

Algebra Level 1

By calculating mentally, what is the last digit of

135 × 82 + 384 ÷ 192 \large{135 \times 82 + 384 \div 192}

4 4 1 1 0 0 2 2

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1 solution

Blan Morrison
Apr 3, 2018

We can calculate the last digit by looking at the last digits of all of the terms:

5 × 2 + 4 ÷ 2 5\times 2+4\div 2 10 + 2 = 12 \implies 10+2=12 Since the last digit of 12 is 2, the answer is 2 \boxed{2} .

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