3.OA.4 Unknown whole number in a Multiplication/Division equation
3.OA.7 Fluently Multiply and Divide using Strategies
3.OA.8 Two-Step Word Problems
100
Which number makes the equation true?
5 X 7= ?
What is 7?
5 x 7= 35
100
20 ÷ 4 = ?
What is 5? 20 ÷ 4= 5
4 x 5 = 20
5 x 4 = 20
20 ÷ 5 = 4
100
There are 425 boys and 510 girls in Hank’s school. 23 new girls enrolled in the school. How many more girls are there than boys?
What is 108 more girls than boys?
510 - 425= 85
85 + 23= 108 more girls
200
Which number makes the equation true:
18= ___ x 3
What is 6?
18= 6 x 3
200
Emma bought a length of string and then cut it into 8 pieces that are equal in length. Each piece is 9 inches long.
How long was the ribbon that Emma bought?
What is 72 inches?
8 x 9= 72
200
Meghan baked 28 oatmeal cookies and 24 chocolate chip cookies. She dropped 13 cookies on the floor. How many cookies were left?
What are 39 cookies?
28 + 24= 52 cookies
52 - 13= 39 cookies
300
What is the value of 'n' in each equation ?
32 ÷ 4= n
n = 5 x 8
9 x n = 63
n ÷ 7 = 8
What are 8, 40,7, and 56?
300
James has 8 toy trucks.
Each toy truck has 6 wheels.
How many wheels do the toy trucks have in all?
a. 14 wheels
b. 16 wheels
c. 48 wheels
d. 50 wheels
What is 'c?'
48 wheels
8 x 6= 48 wheels
300
Jerome had 23 farm animal stickers and 17 sea animal stickers. He used all of the stickers to fill an eight-page scrapbook. He put the same number of stickers on each page. How many stickers did he put on each page?
a. 5
b. 6
c. 32
d. 40
What is 5 stickers?
Step 1: 23 + 17 = 40
Step 2: 40 ÷ 8 = 5
400
Tim drew the following array to help him solve 4 x 3.
Did Tim draw the correct array? Why or why not? You may use your white board to explain.
What is no?
The picture shows 5 x 4 = 20
He should have drawn (make sure the student shows 4 groups of 3)
400
Shana collects 32 leaves.
She pastes 8 leaves on each page of her scrapbook.
How many pages on her scrapbook did she fill?
What are 4 pages?
32 ÷ 8 = 4
4 x 8 = 32
400
Part 1
There are 4 plastic beaded necklaces with 100 beads. How many beads do all of the necklaces have in all?
Part 2
If Cam divided the friends with 5 friends, how many beads will each friend receive?
Part 1: What are 400 beads?
Part 2: What are 80 beads?
500
Which of the equations belong to the same fact family as 4 x 6 = 24?
a. 24-4 = 20
b. 6 x 4 = 24
c. 24 + 4= 28
d. 24÷4 = 6
e. 24÷4 = 12
f. 24÷4 = 6
What is b, d, and f?
500
Does replacing the unknown number with 7 make each equation true? Mark Yes or No for each equation.
a. 6 x w= 36
b. 8 x w= 64
c. 49 ÷ w= 7
d. 54 ÷ w= 6
What is..
a. no 6 x 6= 36
b. no 8 x 8= 64
c. yes 49 ÷ 7= 7
d. no 54 ÷ 9= 6
500
Sing Li had 120 baseball cards.
After Sing Li bought 50 more cards, she had 35 more cards than Ray.
Which of the following equations shows how to find the number of cards Ray has?
a. n= 120 + 50 - 35
b. 120 + 35 - 50
c. 120 - 50 - 35
d. 120 + 50 + 35
What is 'a?'
120 + 50 - 35
She had 120, bought 50 more, and subtract 35 to show how many cards Ray has.