Mathematics
Grade5
Easy

Question

James wants to buy a new 40-pound dumbbell to boost his fitness. The weight of the dumbbell in ounces is ________

  1. 640
  2. 456
  3. 540
  4. 450

The correct answer is: 640


    1 pound = 16 ounces
    Then 40 pounds = 40 × 16
    =640 ounces.

    1 pound = 16 ounces
    40 pounds = 16 x 40 = 640 ounces.

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