Jan collects foreign stamps. Her friend gives her 8 stamps. Jan then has 21 stamps. How many stamps did Jan have to start with? Let x represent the number of stamps.
Find the equation.
Solve the equation.
Answer the question.
Question 2
2.
Nine more than three times a number is 24.
Write an equation.
Solve by inspection.
Question 3
3.
A number divided by eight is 9.
Write an equation.
Solve by inspection.
Question 4
4.
Six times a number is 54.
Write an equation.
Solve by inspection.
Question 5
5.
Ned spent $36 on a new shuttlecock racquet. He then had $45 left. How much money did Ned have before he bought the racquet?
Write an equation.
Solve by systematic trial.
Question 6
6.
Laurie sold 13 books for $208. All books had the same price. What was the price of each book?
Write an equation.
Solve by systematic trial.
Question 7
7.
Maurice sorts some dominoes. He divides them into 15 groups, with 17 dominoes in each group. How many dominoes does Maurice sort?
Write an equation.
Solve by systematic trial.
Question 8
8.
Write the equation that is represented by the balance scales. Solve the equation.
Question 9
9.
Write the equation that is represented by the balance scales. Solve the equation.
Question 10
10.
Solve using tiles
x + 6 = 9
Question 11
11.
Solve using tiles.
x - 9 = 6
Question 12
12.
Sara collects 56 leaves for a science project. She collects the same number of each of 7 different types of leaves. How many of each type did Sara collect?
a) Write an equation you can use to solve the problem.
b) Solve the equation. Verify the solution.
Question 13
13.
Serena walks 400 m from home to school. Serena is 140 m from school. How far is Serena from home?
a) Write an equation you can use to solve the problem.
b) Solve the equation using algebra. Verify the solution.
Question 14
14.
The Grade 7 classes sold pins to raise money for charity. They raised $228. Each pin sold for $4. How many pins did they sell?
a) Write an equation you can use to solve the problem.
b) Solve the equation using algebra. Verify the solution.
Question 15
15.
Jaya has 25 hockey cards. She has one more than 3 times the number of cards her brother has.
Write, then solve, an equation to find how many cards he has.
Question 16
16.
The school’s sports teams held a banquet. The teams were charged $125 for the rental of the hall, plus $12 for each meal served. The total bill was $545. How many people attended the banquet?
a) Write an equation you could use to solve the problem.