Addition Equations
What is the solution of y + 54 = 80?
y = 26
What is the solution of p - 15 = 30?
p = 45
What is the solution of 25v = 200?
v = 8
What is the solution of 44 = t ÷ 11?
t = 484
A music center needs 840 rubber floor tiles. If the total cost for the rubber floor tiles is $6,300, how much does one floor tile cost?
$7.50
What is the solution of 24.8 = t + 5.1?
t = 19.7
What is the solution of f - 16 = 30?
f = 46
What is the solution of 12d = 216?
d = 18
What is the solution of x/3 = 15?
x = 45
Mrs. Felix is mailing a letter to her mother. The envelope is 3 ⅓ inches long by 3 ½ inches wide. What is the area of the envelope?
11 2/3 inches squared
Which of the following equations does not have a solution of 12?
A. 15 = x + 13 B. 19 = x + 7 C. 27 = x + 15 D. 18 = x + 6
A. 15 = x + 13
What is the solution of 19 = x - 43?
x = 62
Which of the following equations does not have a solution of 4?
A. 20 = 5x B. 18x = 72 C. 2 = ½ x D. 3x = 6
D. 3x = 6
What is the solution of 16 = x/4?
x = 64
Mr. Rinaldi has 21 pounds of clay. He needs 5 ¼ pounds of clay to make one piece of pottery. How many pieces of pottery can he make?
4 pieces
Joe and Mary collect seashells when they go to the beach. Mary has 16 more seashells than Joe. Mary has 29 seashells. How many seashells does Joe have?
Draw a model.
Write an addition equation.
Solve.
equation - 29 = x + 16
solution - x = 13
After Lisa’s birthday party, she had a total of $381. She got $250 as gifts. How much did Lisa have before her party?
Draw a model.
Write a subtraction equation.
Solve.
model - 381 on top; 250 and x on the bottom
equation - 381 - 250 = x or 381 - x = 250
solution - x = 131
Jane baked 168 cupcakes for a bake sale. She baked 14 different types of cupcakes. How many of each type of cupcake did she bake?
Draw a model.
Write a multipication equation.
Solve.
model - top 168; bottom split into 14 parts with x in each
equation - 14x = 168
solution - x = 12
Declan is 3 years old. This is one-twelfth Ryan’s age. How old is Ryan?
Draw a model.
Write a division equation.
Solve.
model - x on top; bottom split into 12 pieces with 3 in each
equation - x/12 = 3 or x/3 = 12
solution - x = 36
Tony orders two hotdogs and a soda for lunch. A hotdog is $3 and a soda is $1. Write an expression to show how much he paid for lunch.
(2 * 3) + 1 or 3 + 3 + 1
Mr. Rinaldi is at the top of a waterslide. He slides down and touches the bottom of a pool that is 9 feet deep. He traveled a total distance of 15 feet. How tall is the slide?
Draw a model.
Write an addition equation.
Solve.
model - 15 on top; 9 and x on bottom
equation - 9 + x = 15
solution - x = 6
Mr. Lane’s dog needs to go on a diet. The vet would like Sparkles to lose 7.5 pounds so that she weighs 42 pounds. How much does Sparkles weigh?
Draw a model.
Write a subtraction equation.
Solve.
Model - x on top; 42 and 7.5 on the bottom
equation - x - 42 = 7.5 or x - 7.5 = 42
solution - x = 49.5
Joe and his friends split the cost of a board game evenly. If there are six of them, and the board game cost $30, how much did each person contribute?
Draw a model.
Write a multiplication equation.
Solve.
model - 30 on top; bottom split into 6 pieces with x in each
equation - 6x = 30
solution - x = 5
Silvia has completed 8 math exercises. This is one-fourth of the assignment. How many exercises were assigned?
Draw a model.
Write a division equation.
Solve.
model - x on top; bottom split into 4 with 8 in each
equation - x/4 = 8 or x/8 = 4
solve - x = 32
A company charges $8 to make a pattern for an order of T-shirts and $10 for each T-shirt made. The expression, 10n + 8, represents the cost of n T-shirts with the same pattern. Find the total cost for 7 T-shirts with the same pattern.
$78