5th Grade Challenge Problems #1

2 × 0 × 23 =

Mathematical Equivalence

ON

Eric rode the train from noon to 8:20 pm today. How many minutes long was Eric’s train

ride?

Mathematical Equivalence

ON

When Amani turned 12 years old, her brother Omar was half of Amani’s age. Now that

Amani just turned 20 years old, how old is Omar?

Mathematical Equivalence

ON

Mathematical Equivalence

ON

Mathematical Equivalence

ON

Laya ran 12 miles in 2.5 hours at a constant rate. How many minutes did it take her to run

1 mile? Give your answer as a decimal number.

Mathematical Equivalence

ON

Mathematical Equivalence

ON

Mathematical Equivalence

ON

Madison and Kai donated a total of $405 to a cancer center. Madison donated twice as much

money as Kai. How much money did Kai donate to the cancer center?

Mathematical Equivalence

ON

Tiffany made 48 fluid ounces of smoothie and poured it all into three empty bottles. She

then drank 5 fluid ounces from the first bottle, 6 fluid ounces from the second bottle, and

7 fluid ounces from the third bottle. Afterwards, she noticed that each bottle had the exact

same amount of smoothie remaining. How much smoothie did she originally pour into the

first bottle?

Mathematical Equivalence

ON