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1What is a number left over after dividing that does not divide evenly called?
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Answer: remainder
The correct math term is "remainder."
2Sofia's rectangular dog pen is 13 feet long and 23 feet wide. What is the perimeter of the dog pen?
8Ivy is 20 years younger than Grandpa Lee. If Grandpa Lee was 60 years old 6 years ago, how old is Ivy now?
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Answer: 46 years old
Grandpa Lee is 60 + 6 = 66 now. Ivy is 66 − 20 = 46 years old.
9On the number line below, which point represents the fraction 3/4?
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Answer: Point Y
The number line from 0 to 1 is divided into 4 equal parts. 3/4 is located three parts to the right of 0. Point Y is at the third mark. Point W is at 1/4, Point X is at 1/2, and Point Z is not on the number line. Option C is correct.
10A ribbon is 144 cm long. Another ribbon is 94 cm long. How much longer is the first ribbon?
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Answer: 50
Subtract the shorter length from the longer length: 144 − 94 = 50 cm.