2. Problem Solving

Working Backwards — Quiz

Test your understanding of working backwards with 5 practice questions.

Practice Questions

Question 1

A number is divided by 4, and then 7 is subtracted from the result. If the final answer is 3, what was the original number?

Question 2

A recipe calls for a certain amount of sugar. If you use half of the sugar and then add 2 tablespoons, you have 6 tablespoons of sugar. How much sugar did the recipe initially call for?

Question 3

A student reads a book. They read 10 pages on Monday and then half of the remaining pages on Tuesday. If there are 20 pages left, how many pages did the book have initially?

Question 4

A certain amount of water is in a bucket. If 3 liters are poured out, and then the remaining water is doubled, there are 14 liters in the bucket. How much water was initially in the bucket?

Question 5

A tree grows by 5 cm each week, but then 2 cm are trimmed off. If the tree is 16 cm tall after one week, what was its initial height?