Multiply by 10's
Division
Multiplication or Division?
Unknown Factors
Review
100
Solve 2 x 40.
80
100
Find the quotient.
36 ÷ 9 = ___
___ = 4
100
Jackson has five packs of erasers. Each pack has 12 erasers. How many erasers are there in all?
Is this a multiplication or division situation?
multiplication
100
Turn this division equation into a multiplication sentence.
35 ÷ 7 = 5
5 x 7 = 35
100
Write the number in base ten numeral form (standard form):
3 hundreds, 20 tens, 12 ones
512
200
Solve 3 x 60.
180
200
Find the quotient.
54 ÷ 6 = ?
? = 9
200
Irene read for 21 hours this week. If she read the same amount each night, how many hours did she read each day?
Is this a multiplication or division situation?
division
200
Which multiplication equation can be used to solve 72 ÷ 9 = ⬜?
9 + ⬜ = 72
⬜ + 9 = 72
⬜ x 9 = 72
72 x ⬜ = 9
200
Compare:
700 + 30 + 7 ___ 2 hundreds, 50 tens, 7 ones
737 > 707
300
Solve 6 x 70.
420
300
Solve to find the quotient.
72 ÷ 12= ⃤
⃤= 6
300
Ms. Swanger planted pumpkins as shown below.
Does this array show multiplication or division?
It can show both because
4 x 9 = 36 and 36 ÷ 4 = 9
300
Ms. Zittrouer found the answer to 42 ÷ 7 by writing a multiplication equation that had the numbers 7 and 42. What multiplication equation did she most likely write?
7 x __ = 42
300
The third graders at White Oak collected 385 cans. The fourth graders collected 374 cans. How many cans did they collect in all?
385 + 384 = 759
400
Olivia has 4 dolls. Each doll has 30 accessories. How many accessories do her dolls have in all?
4 x 30 = 120
400
Ms. Reese is carving a pumpkin. She wants to split the total number of seeds into 7 bags to give her students. If she has 56 pumpkin seeds, how many seeds will be in each bag?
8 seeds
400
Tiffany has six cookies. She places four chocolate chips on each cookie. How many chocolate chips did she use in all?
Determine the operation and solve.
6 x 4 = 24
400
Ms. Carr wants to split 24 pencils with 8 students What is a division and multiplication equation that represents this problem?
24 ÷ 8 = 3
8 x 3 = 24
400
The third graders at White Oak collected 385 cans for the canned food drive. Fifth graders collected 469. How many fewer cans did third grade collect than fifth?
469- 385= 84 cans
500
Samuel is on the school soccer team. He has 14 games. If his team scores 20 points per game, how many points will they score total for the season.
14 x 20= 280 points
500
Daniel has 63 pieces of candy. He shares them with eight of his friends. If they each get an equal amount, how many pieces will each person get?
63 ÷ 9 (Daniel and his 8 friends) = 7
500
There are 24 people going on a field trip. If 8 people can fit in a van, how many vans are needed for the trip?
Determine the operation and solve.
24 ÷ 8 = 3
500
How can you use multiplication to help you find the answer to division problems. Use a model and equation to explain your thinking.
Student answers may vary.
500
4 x 5 =
20