Unknown Addend
There were 90 girls and some boys in an after school program. 160 children were in the program in all. How many boys were in the after school program? Draw a math mountain with the correct total and addends.
70
Write an equation using a variable and solve the problem.
A toymaker has 36 boxes of toy trains to ship to 4 toy shops. Each shop will get the same number of boxes. How many boxes of toy trains will each shop get?
4 x b = 36 or 36 / 4 = b
b = 9 boxes
Use comparison bars to solve the problem.
Maribel has 18 stickers. Arnon has 13 more stickers than Maribel. How many stickers does Arnon have?
31 stickers
Write an equation using a variable.
Carrie played a video game and scored 20 points seven times and 55 points one time. How many points did Carrie score?
( 7 x 20 ) + 55 = p
Solve the word problem.
There were 9 rows of chairs set up in the school gym. Each row had 20 chairs. After the students were seated, there were 12 empty chairs. How many chairs were filled?
168 chairs
There were 150 people at the park. 70 were playing soccer. The others were playing softball. How many people were playing softball? Draw a math mountain with the correct total and addends.
80
Write an equation using a variable and solve the problem.
There are 56 cars in a parking lot. There are 8 rows and the same number of cars in each row. How many cars are in each row?
8 x c = 56 or 56 / 8 = c
c= 7 cars
Use comparison bars to solve the problem.
Ivan has 19 goldfish. Milo has 15 more goldfish than Ivan. How many goldfish does Milo have?
34 goldfish
Write an equation using a variable.
Darin earns $8 each week doing chores. He is saving his money to buy a game that costs $49 and a hat that costs $15. How many weeks will Darin need to save his money?
( 49 + 15 ) / 8 = m
Solve the word problem.
Eric had 143 baseball cards. His uncle game him a number more. Then Eric game 26 cards to a friend. He has 184 cards now. How many cards did Eric's uncle give him?
67 cards
Jan planted 80 tulips last week. Today she planted some roses. How she has 170 flowers. How many roses did she plant? Draw a math mountain with the correct total and addends AND write an equation using a variable.
80 + r = 170 r=90 roses
Write an equation using a variable and solve the problem.
An apartment building has 42 apartments. There are 6 apartments on each floor. How many floors are in the apartment building?
f x 6 = 42 or 42 / 6 = f
f = 7 floors
Use comparison bars to solve the problem.
TJ has 18 fewer miniature cars than Corey. Corey has 32 miniature cars. How many miniature cars does TJ have?
14 miniature cars
Write an equation using a variable.
A dog trainer is working with 7 dogs. He rewards each dog with the same number of treats. He started with 35 treats and he has 7 left. How many treats did he give each dog?
( 35 - 7 ) / 7 = t
Solve the word problem.
Brandi had 8 equal rows of stickers. She bought 5 more and now she has 53 stickers. How many were in each row before she bought more?
6 stickers
Tim's team had 140 tennis balls. Then his brother's team borrowed some. Now Tim's team has 60 tennis balls. How many did his brother's team borrow? Draw a math mountain with the correct total and addends AND write an equation using a variable
60 + b = 140 b=80 tennis balls
Write an equation using a variable and solve the problem.
There are 48 students in the marching band. The students stand in equal rows of 8. How many rows of students are there?
r x 8 = 48 or 48 / 8 = r
r = 6 rows
Use comparison bars to solve the problem.
Grace has 19 fewer stuffed animals than Sophia. Sophia has 31 stuffed animals. How many stuffed animals does Grace have?
12 stuffed animals.
Write an equation using a variable.
Sheila has two dogs. One dog weighs 46 pounds and her other dog weighs 14 pounds more. How many pounds do the two dogs weigh altogether?
46 + ( 46 + 14 ) = p
Solve the word problem.
Randall cut a board into two pieces. One piece has a length of 84 inches. The other piece is 24 inches shorter. How long was the board Randall cut?
144 inches
Asha made 15 sandwiches. Six were cheese, and the rest were peanut butter. How many peanut butter sandwiches did Asha make? Draw a math mountain with the correct total and addends AND write an equation using a variable.
15 - 6 = p p = 9 peanut butter sandwiches
Write an equation using a variable and solve the problem.
Daniel is setting up seats for the third grade play. There are 6 seats in each row. There are 54 seats all together. How many rows of seats are there?
r x 6 = 54 or 54 / 6 = r
r = 9 rows
Use comparison bars to solve the problem.
The coach brought 18 hockey sticks to practice. There were 23 players at practice. How many players didn't get sticks?
5 players
Write an equation using a variable.
Eli has 36 stamps and his brother has 24 stamps. They put their stamps in the same book. They put the same number of stamps on each page. They used 10 pages. How many stamps are on each page?
( 36 + 24 ) / s = 10
Solve the word problem.
A science poster shoes 9 insects with 6 legs each and a spider with 8 legs. How many legs is that altogether?
62 legs