Solving Word Problems with One-Step Equations 1.
The sum of 2 and a number is 7. Write and solve an equation to find the missing number.
2.
The product of 3 and a number is 21. Write and solve an equation to find the missing number.
3.
A number minus 3 is 5. Write and solve an equation to find the missing number.
4.
A number divided by 4 is 7. Write and solve an equation to find the missing number.
5.
The product of 5 and a number is 30. Write and solve an equation to find the missing number.
6.
A number minus 8 is 1. Write and solve an equation to find the missing number.
7.
A number divided by 4 is 3. Write and solve an equation to find the missing number.
8.
The sum of 6 and a number is 7. Write and solve an equation to find the missing number.
9.
Jennifer and her brother have 7 tacos. Her brother eats 4. Write and solve an equation to find how many tacos Jennifer eats.
10.
4 boys decide to equally share some money they found on the ground. If each boys gets $5, write and solve an equation to find out how money they found.
11.
John earns $5 per hour mowing lawns. Write and solve an equation to find how many hours he must work to earn $40.
12.
Paula has 3 more dolls than her friend. If Paula has 10 dolls, write and solve an equation to find out how many dolls her friend has.
13.
After his payment, Mr. Gonzales had a credit card balance of $70. He paid $20. Write and solve an equation to find the amount of his credit card bill.
14.
Carol earns $8/h. Write and solve an equation to find how many hours she must work to earn $288.
15.
A used book costs $17 less than the same book new. The used book costs $9. Write and solve an equation to find out how much the new book cost.
16.
Ricky rides his bike 12 miles every day. He stops after 7 miles to rest. Write and solve an equation to find out how much further he has to ride.
17.
Marcy’s CD player cost $115 less than her DVD player. Her CD player cost $78. Write and solve an equation to find out how much her DVD player cost.
18.
The best price Steven found on a new compact car with a sports option package was $10,935. If the option package cost $850, what was the price of the car? Write and solve an equation.
19.
Your friend’s DVR cost $328 less than her TV. Her DVR cost $179. Write and solve an equation to find out how much her TV cost.
20.
At a rate of $15 per month, how long does saving $135 take? Write and solve an equation.
21.
Lone Star Supply company bought a computer system with a color monitor for $1,598. If the color monitor cost $699, how much did the rest of the system cost? Write and solve an equation.
22.
The United States population in 2005 was twice the population in 1949. If the population of the United States in 2005 was 296 million, write and solve an equation to find the population in 1949 (in millions).
23.
Jennifer made a deposit of $150 for soccer camp. Her unpaid balance was $300. What was the fee for soccer camp? Write and solve an equation.
24.
Fax machine F transmits at twice the rate of fax machine G. If F transmits 9,600 bits per second, how many bits per second does G transmit? Write and solve an equation. The United States population in 2005 was twice the population in 1949. If the population of the United States in 2005 was 296 million, write and solve an equation to find the population in 1949 (in millions).
25.
Ben and his brother Jason are having their annual medical checkups. The nurse records their heights and weights. She tells Ben that he is 5 feet 7 inches tall and weighs 3 times as much as Jason. If Ben weighs 144 pounds, how much does Jason weigh? Write and solve an equation.
26.
Murielle had $175 when she started shopping for clothes. After buying a skirt, a pair of shoes, and a hat in three different stores, she had $41 left. How much did she spend? Write and solve an equation.
27.
The average distance from the sun to Jupiter is 778 million km. This distance is 550 million km greater than the average distance from the sun to Mars. Write and solve an equation to find the average distance d that Mars is from the sun (in millions of km).
28.
The speed of sound through steel is 5,200 meters per second (m/s). This is 2,520 m/s faster than the speed of sound through silver. Write and solve an equation to find the speed of sound s through silver.
29.
In one year, 487 million people across the world spoke English. This was 512 million fewer than the number who spoke Mandarin Chinese. Write and solve an equation to find out how many people spoke Mandarin Chinese (in millions).
30.
Venus’s average distance from the sun is 108 million km. This distance is 42 million km less than the average distance you’re the sun to earth. Write and solve an equation to find the Earth’s average distance d from the sun (in millions of km).
20
8
9
1
899
48
90
228
134
2, 680
5
8
7
9
507
12
26
450
150
4, 800
6
3
7
5
193
28
36
148
999
10, 085
