Question

Owen’s math book weighs 2 pounds 13 ounces. His science book weighs 1 pound 15 ounces. His backpack weighs 1 pound 1 ounce. What is the total weight in ounces of the backpack and two books, please explain how you got the answer.

Answer 1

16 pounds should weigh

Answer 2

1 pound= 16 ounces


STEP 1:
convert each weight given to ounces only; multiply each pound by 16 ounces per pound, then add the additional ounces each item weighs

Math Book:
= (2 pounds * 16 ounces/lb) + 13 ounces
= 32 + 13
= 45 ounces

Science Book:
= (1 pound * 16 ounces/lb) + 15 ounces
= 16 + 15
= 31 ounces

Backpack:
= (1 pound * 16 ounces/lb) + 1 ounce
= 16 + 1
= 17 ounces


STEP 2:
total the number of ounces of each item in step 1

= 45 oz math book + 31 oz science book + 17 oz backpack
= 93 ounces total


ANSWER: The total weight of the backpack and two books is 93 ounces.

Hope this helps!  :)