16Hit1600
Advanced MathEasy–MediumAmount after three doublings

Advanced Math practice question

A sum of $5 is doubled three times. What is the result, in dollars?

Answer: 40

5 × 2 × 2 × 2 = 40.

Common wrong answers

If you answered 15
15 triples 5 instead of doubling three times.
If you answered 30
30 adds 5 three times and doubles once, or multiplies 5 by 6.
If you answered 80
80 doubles four times.

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