Unknowns
What unknown number makes the equation true?______ = 4 x 8
32
Ramon's younger brother helped pick up all the paper clips in Ramon's room. He was able to collect 24 paper clips. If he wants to distribute the paper clips in 6 boxes, write an equation showing how many paper clips each box will contain.
24 ÷ 6 = 4
Each box will contain 9 paperclips.
Which statement cannot be represented by the expression 12 ÷ 3?
a. Collin has 12 toy trucks. He sorts them into groups of 3 trucks each.
b. Amira has 12 trading cards. She gives them away equally to 3 friends.
c. Jake makes 12 muffins. He gives away 3 muffins.
d. Steven fills a new bookshelf with 12 books. He puts the same number of books on each of the 3 shelves.
c. Jake makes 12 muffins. He gives away 3 muffins.
120➗10=
12
Write the number makes both equations true:
7 x ? = 21
21 ÷ ? = 7
3
She counted her crayons and found out that she has 80 crayons which she will place in crayon boxes. Every crayon box can contain 8 crayons. How many crayon boxes does she need?
80 ÷ 8 = 10
She needs 10 crayon boxes.
There are 40 horses on a ranch. The ranchers divide the horses evenly among 4 pastures. How many horses are in each pasture?
Is this a division or multiplication story?
Division
32➗8=
4
Which equation has the same unknown value as 20 ÷ 4 = ?
a. 4 = ___x 20
b. 20 = ___x 4
c. 20 x 4 = ___
d. ___÷ 4 = 20
B
Ms. Reyes has 12 cupcakes. She wants to put them into
boxes. Each box can hold 3 cupcakes. How many boxes can Ms. Reyes fill? Write a multiplication or division equation to match your thinking and box your answer.
4 boxes
Which of these situations could be shows by the following number sentence?
5 x 8 = ? Choose TWO that are correct.
A. Alexis is buying 5 DVDs. Each DVD costs $8. Alexis wants to find the total cost.
B. Alexis has $8. She buys a DVD that costs $5. Alexis wants to find how much money she has left.
C. There are 5 pieces of pizza. There are 6 friends eating pizza. Alexis wants to find how many pieces each friend can get.
D. The parking lot has 5 rows of parking spaces. There are 8 spaces in each row. Alexis wants to find the total number of parking spaces.
E. In the parking lot, there are 5 cars parked in one row. There are 8 cars parked in another row. Alexis wants to find the total number of cars.
F. There are 8 kids already signed up for Science Club. Then 5 more kids sign up. Alexis wants to find the total number of kids who have signed up.
A,D
Thirty-Six divided by 4=_____.
9
Select ALL the equations that are true.
a. 2 x 12 = 48 ÷ 4
b. 30 ÷ 3 = 10 x 3
c. 25 ÷ 5 = 2 x 5
d. 4 x 3 = 48 ÷ 4
e. 5 x 5 = 10 x 3
D
A farmer has 8 areas for his crops. The farmer wants to spread each crop equally in the 8 areas. If he has 40 crops, what is the number of crops that can be in each area? Write a multiplication or division equation to match your thinking and box your answer.
5 crops in each area
Billy has 7 full cans of juice. He has 7 x 7 ounces of juice all together. What could the 7 mean?
a. There are 7 ounces of juice in one full can.
b. There are 7 people who want juice.
c. He already drank 7 cans of juice.
d. He spilled 7 ounces of juice.
A. There are 7 ounces of juice in one full can.
___ ÷ 3 = 7
21
Decide whether the expression has the same unknown number as 8= ____ ÷ 3
3 x 8 = ____
Yes
There were 3 bags of oranges. Each bag has 10 oranges. How many oranges are there in all?
30 oranges
There are 16 children in class today. Ms. Reyes wants to divide the children into equal groups with none left over. What are three different ways Ms. Reyes could divide the children into groups?
_________ groups of ________ children
_________ groups of ________ children
_________ groups of ________ children
2 groups of 8 children
4 groups of 4 children
8 groups of 2 children
Solve for :
Twenty-eight divided by seven=
4