Practice Quiz

GRE Math Review Questions

Category - GRE Math

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Lance’s bike team has 11 riders. They will each bike 83 miles in the race. How many miles will they bike?
  1. 913
  2. 917
  3. 922
  4. 931
  5. 934
Explanation
Answer: A - 913 miles.

To multiply a number by 11:

Rewrite the first number with a space between:

8_3

Then, add those two numbers together (to get 11), and put that in the space. Since the sum of the two digits is greater than 9, you will have to carry the 1.

913 miles is answer.

Key Takeaway: Practice with 10 different numbers and you will blaze through multiplying by 11 when it counts.
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