Multiplication
What is 5 x 17? Show your work.
WORK:
(5 x 10) + (5 x 7)
= 50 + 35
ANSWER: 5 x 17 = 85
What is 48 / 3?
USE WHAT YOU KNOW ABOUT MULTIPLICATION
12 x 3 = 36
13 x 3 = 39
14 x 3 = 42
15 x 3 = 45
16 x 3 = 48
ANSWER 48 / 3 = 16
What is the answer to a division problem called?
quotient
Mia is packing 20 jars into boxes. Each box will hold 6 jars.
How many boxes will she fill? How many jars will be left over?
20 / 6 = 3 R2
ANSWER: She will fill 3 boxes and have 2 jars left over.
What is 16 x 4?
SHOW YOUR WORK
16 x 4 =
(10 x 4) + (6 x 4)
40 + 24
= 64
Using the "breaking apart one number" strategy, solve 26 x 9.
WORK:
(20 x 9) + (6 x 9)
180 + 54
ANSWER: 26 x 9 = 234
What is 78 / 5?
5 x 12 = 60
5 x 13 = 65
5 x 14 = 70
5 x 15 = 75
ANSWER: 78 / 5 = 15 R3
In the equation 18 / 6 = 3, what is the dividend?
18
Sabrina rides her Vespa 27 miles to and from work each day. How many miles did Sabrina ride to and from work in 7 days?
SHOW YOUR WORK
WORK:
(20 x 7) + (7 x 7)
140 + 49
ANSWER: Sabrina rode 189 miles in 7 days.
If 21 is the dividend, and 7 is the quotient, what is the divisor?
21 / ? = 7
21 / 3 = 7
ANSWER: The divisor is 3.
Dr. Sussman earns $77 an hour at the hospital. Dr. Sussman works for 8 hours each day. How much money does Dr. Sussman earn in one day?
USE ANY STRATEGY, BUT SHOW YOUR WORK
WORK:
(70 x 8) + (7 x 8)
560 + 56
ANSWER: Dr. Sussman earns $616 in one day.
Karen is putting 36 soda cans into coolers for a picnic. Each cooler holds 10 soda cans. How many coolers will Karen need to hold all the cans?
SHOW YOUR WORK
36 / 10 = 3 R6
ANSWER: Karen will need 4 coolers to hold all the cans.
If the dividend is 42, and the divisor is 3, what is the quotient?
42 / 3 = 14
The quotient is 14.
James has 192 stars to sew on a flag. He wants to sew them in 16 rows.
How many stars should he sew in each row?
WORK: 192 / 16 = ?
16 x 10 = 160
16 x 11 = 176
16 x 12 = 192
ANSWER: He should sew 12 stars in each row.
Use any strategy to find the product of 94 and 15.
WORK:
(90 x 10) + (90 x 5) + (4 x 10) + (4 x 5)
900 + 450 + 40 + 20
ANSWER: 94 x 15 = 1,410
Eight rooms are available for meetings. Each room can hold 24 people. How many people can fit into all eight rooms?
8 x 24
(8 x 20) + (8 x 4)
160 + 32
ANSWER: 192 people could fit into the eight rooms.
Frida is making cookies for a party. She needs 4 cups of flour for one batch of cookies.
How many batches can Frida make if she has 25 cups of flour?
25 / 4 = 6 R1
ANSWER: Frida could make 6 batches and she will have 1 cup of flour leftover.
If the quotient is 12 and the divisor is 5, what is the dividend?
quotient x divisor = dividend
12 x 5 = 60
ANSWER: The dividend is 60.
There were 12 kids at a party. They split 40 Bakugans evenly.
How many Bakugans were left over?
40 / 12 = 3 R4
They were 4 Bakugans left over.
There are 114 students who have signed up to go to the zoo.
The school plans to rent vans for the trip. Each van holds 8 students.
How many vans does the school need to rent?
8 x 12 = 96
8 x 13 = 104
8 x 14 = 112
--> 114 / 8 = 14 R2
ANSWER: The school needs 15 vans to fit everyone.
Ash sold 12 Charizard Pokemon cards $139 each. How much money did Ash make?
WORK: 139 x 12
(100 x 12) + (30 x 12) + (9 x 12)
1,200 + 360 + 108
ANSWER: Ash made $1,668.
Percy is making paintings for an art show. He has 75 ounces of paint. Each painting will use 4 ounces of paint. How many paintings can Percy make? How many ounces of paint will be left over?
75 / 4 = ?
4 x 20 = 80
4 x 19 = 76
4 x 18 = 72
ANSWER: Percy can make 18 paintings and will have 3 ounces of paint leftover.
Divide the product of 12 and 14 by 2. What is the quotient?
12 x 14 = 168
168 / 2 = 84
The quotient is 84.
Luca swam 45 minutes a day for 30 days.
Alberto swam 35 minutes a day for 40 days.
Who swam for more minutes?
SHOW YOUR WORK
Luca: 45 x 30 = 1,350 minutes
Alberto: 35 x 40 = 1,400 minutes
ANSWER: Alberto swam more minutes.
Luca swam 40 minutes a day for 32 days.
Alberto swam 30 minutes a day for 40 days.
How many minutes did they swim altogether?
SHOW YOUR WORK
Luca: 40 x 32 = 1,280
Alberto: 30 x 40 = 1,200
1,280 + 1,200 =
ANSWER: They swam 2,480 minutes altogether.