Grade 7 · Math · Unit 7 of 20
Percents & Proportions
Increase, decrease and proportional
What your child practises
Knowing common fraction, decimal and percent equivalents, increasing and decreasing numbers by 1%, 5%, 10%, 25%, 50% and 100%, and deciding whether a relationship is proportional.
Ontario Curriculum expectation: B2.2, B2.3, B2.10 · common fraction, decimal and percent equivalents, increasing and decreasing by a percent, and proportional reasoning
Sample questions
A taste of this unit. In the app, questions change every time and get easier or harder to match your child.
Question 1
Which fraction is equal to 70%?
- 7/10
- 1/5
- 3/4
Show answer
7/10
Hint: Write the percent as a fraction out of 100, then simplify.
Question 2
Decrease 40 by 10%. What is the new number?
answer box
Show answer
36
Hint: Find 10% of 40, then take it from 40.
Question 3
Ravi earns $12 for every hour he works. Is his pay proportional to the hours he works?
- No, pay goes up by different amounts
- Yes, doubling the hours doubles the pay
- No, pay is the same every hour
Show answer
Yes, doubling the hours doubles the pay
Hint: In a proportional relationship, doubling one amount doubles the other, and the ratio stays the same.
Question 4
Decrease 260 by 5%. What is the new number?
answer box
Show answer
247
Hint: Find 5% of 260, then take it from 260.
Question 5
Which decimal is equal to 1/4?
- 0.25
- 0.4
- 0.375
Show answer
0.25
Hint: Divide the top by the bottom.
Question 6
Increase 131 by 100%. What is the new number?
answer box
Show answer
262
Hint: Find 100% of 131, then add it to 131.