Multiplication
3 x 7
21
15 ÷ 3
5
Write an equation using a symbol to represent the unknown quantity.
There are 44 students out of the recess field. 4 students go into the school. How many students are on the field now?
44 - 4 = ?
Does the situation match the equation? Be prepared to explain.
5 x 18 = ?
There are 5 baskets and 18 apples in each basket. How many apples are there?
Yes, because multiplication is the same as combining equal groups of objects.
OR
Yes, because 5x18 is the same as 5 groups (baskets) of 18 objects (apples) in each group.
Velma has 4 sheets of stickers. Each sheet has 8 stickers on it. How many stickers are there?
4 x 8 = 32
32 stickers
14 x 2
28
12 ÷ 4
3
Write an equation using a symbol to represent the unknown quantity.
A farmer plants 56 seeds in the field. They plant 14 seeds in each row. How many rows were planted?
56 ÷ 14 = ?
OR
56 ÷ ? = 14
Does the situation match the equation? Be prepared to explain.
77 ÷ 11 = ?
There are 77 people swimming in the pool. 11 people get out of the pool. How many people are swimming now?
No, in the situation they are taking people out of the pool which is subtraction.
OR
No, the equation is division and there are not equal groups in the situation.
There are 247 players out on the field. 165 are wearing red jerseys or green jerseys. The rest are wearing blue jerseys. How many players are wearing blue jerseys?
247 - 165 = 82
82 players
5 x 16
80
30 ÷ 5
6
Write an equation using a symbol to represent the unknown quantity.
There are 36 cars in the drop-off line in the morning. Each car has 4 people in it. How many people are there in the drop-off line?
36 x 4 = ?
OR
4 x 36 = ?
Which equation best represents the situation? Be prepared to explain your reasoning.
There are 42 bananas in a crate. Daphne puts 3 bananas in each bag. How many bags will Daphne need for all the bananas?
A.) 42 - 3 = ?
B.) 42 + 3 = ?
C.) 42 ÷ 3 = ?
D.) 42 x 3 = ?
C
Scooby has a bag of 56 snacks. He eats exactly 7 snacks each day. How many days will it take until the snacks are gone?
56 ÷ 7 = 8
8 days
8 x 30
240
34 ÷ 2
17
Write an equation using a symbol to represent the unknown quantity.
There are 253 students in the cafeteria. 182 are eating pizza or burgers. The rest are eating meatballs. How many students are eating meatballs?
253 - 182 = ?
Choose all the equation(s) that represent the situation.
There are 4 rows of balloons at the party. Each row has the same number of balloons. There are 20 balloons altogether.
A.) 4 x ? = 20
B.) 20 X 4 = ?
C.) 20 x ? = 4
D.) 20 ÷ 4 = ?
A and D
There are 78 passengers trying to get to Florida. There are 3 planes and each plane carries the same number of passengers. How many passengers are on each plane? Explain or show your reasoning.
78 ÷ 3 = 26
26 passengers on each plane
24 x 7
168
85 ÷ 5
17
Write a multiplication AND division expression for the following situation using a symbol for the unknown quantity.
Fred has 66 erasers on his desk. He lines up the erasers in 6 rows. How many erasers are in each row?
6 x ? = 66
66 ÷ 6 = ?
Select all the situations that matches the equation,
36 ÷ 4 = ?.
A.) There are 36 hockey teams at the tournament. There are 4 players on each team. How many players are at the tournament?
B.) There are 36 soccer players on 4 equal teams. How many players are on each team?
C.) There are 36 toys in the cabinet. Shaggy puts 4 toys in each bin. How many bins will Shaggy need for all the toys?
D.) There are 4 trains. Each train has 36 passengers on it. How many passengers are there altogether?
B and C
There are 63 students going on a field trip. Each bus fits 25 students. There are 2 buses parked outside ready to the students on the trip. Will all the students fit on the buses? Explain your reasoning.
No, since each bus holds 25 students, then 2 buses hold 2x25 students which is 50. This is less than 63 so there is not enough space.