Associative Property
Explain how the equations below represent the same amount.
8x10 = 4x2x10
They represent the same amount because 4x2=8, so 4x2x10 is the same as 8x10. They both equal 80.
Tom and his 3 friends decide to split the lunch bill. If they each spent $8, how much was the lunch bill altogether?
$24
A restaurant owner bought 3 boxes of disposable cups with each box containing 20 cups. If he wanted to divvy up the cups among his 2 restaurants, with each restaurant getting the same number of cups, how many cups should each store get?
30 cups
What does y represent in 7 x y = 28?
y = 4
Compare the crossed out prices to the new sale price. If all sale prices are calculated in the same way, what would the sale price be on an item that originally cost 16?
$8 $4
$12 $6
$10 $5
$16 $
$8
Explain how the equations below represent the same amount.
9x6 = 3x3x6
They represent the same amount because 3x3=9, so 3x3x6 is the same as 9x6. They both equal 54.
Cristian and his 4 cousins split a box of Christmas cookies. If they each got 5 cookies, how many cookies were in the box?
25 cookies
The owner of a soda shop bought 3 boxes of special edition cups with each box containing 12 cups. If he expected the cups to last 6 months, how many cups does he plan to use each month?
6 cups
What does m represent in 8 x m = 56.
Use your favorite strategy to solve.
m = 7
Compare the crossed out prices to the new sale price. If all sale prices are calculated in the same way, what would the sale price be on an item that originally cost 21?
$9 $3
$12 $4
$15 $5
$21 $
$7
Simplify to find the answer to 16 × 3.
Show your work.
16 x 3
8 x (2 x 3)
8 x 6 = 48
Brandon and his sister went out to lunch. Brandon ordered a burger and fries and his sister ordered pasta. Use the menu below to find out how much did they spend altogether.
Lunch Menu
Burger $8
Pasta $6
Wings $11
Fries $2
$16
Mariam has 14 green grapes and 16 red grapes. She wants to make 3 equal piles. How many grapes will each pile have?
10 grapes
What does n represent in 49 ÷ n = 7?
Use your favorite strategy to solve.
n = 7
Compare the crossed out prices to the new sale price. If all sale prices are calculated in the same way, what would the sale price be on an item that originally cost 40? Explain how you know.
$24 $3
$32 $4
$16 $2
$40 $
$5. I know this because I divided the original price by $8.
Simplify to find the answer to 21 × 4.
Show your work.
21 x 4
7 x (3 x 4)
7 x 12 = 84
A donut shop makes three times as many donuts as pastries. If the shop makes 27 donuts per day, how many pastries do they make?
9 pastries
Mr. Smith bought 12 packs of crayons. Seven of the packs had 9 crayons in them. Five of the packs had 10 crayons in them. How many crayons did the teacher buy in all?
113 crayons
What does z represent in 36 ÷ z = 4?
Write the related multiplication equation.
z = 9
9 x 4 = 36
4 x 9 = 36
Compare the crossed out prices to the new sale price. If all sale prices are calculated in the same way, what would the sale price be on an item that originally cost 54? Explain how you know this.
$27 $3
$18 $2
$63 $7
$54 $
$6. I know this because I divided the original price by 9.
Simplify to find the answer to 18 × 2.
Show your work.
18 x 2
6 x (3 x 2)
6x6 = 36
Frank ordered 24 cookies from the donut shop. That is three times as many cookies as Jenny ordered and six times as many cookies as Barb ordered. How many cookies did they all order together?
36 cookies
Jerry made 48 cookies. He shared 4 cookies with his sister. He divided the rest of the cookies with his three friends and himself. How many cookies do Jerry and his sister have together?
15 cookies
What does p represent in p ÷ 7 = 6.
Write a related multiplication sentence.
p = 42
7 x 6 = 42
6 x 7 = 42
Compare the crossed out prices to the new sale price. If all sale prices are calculated in the same way, what would the sale price be on an item that originally cost 16? Explain how you know this.
$16 $4
$8 $2
$24 $6
$12 $
$3. I know this because I divided the original price by 4.