Multiplying by 0 and 1
Which of the following are true? Choose all that apply.
a. 3 x 0 = 3
b. 1 x 1 = 2
c. 9 x 1 = 10
d. 1,294,356 x 1 = 1,294,356
e. 0 x 0 = 0
d. 1,294,356 x 1 = 1,294,356
e. 0 x 0 = 0
What numbers would you say if you skip count to find the answer to 7 x 5?
5, 10, 15, 20 ,25. 30, 35
Solve and model your strategy.
7 x 9
7 x 9 = 63
Skip counting: 9, 18, 27, 36, 45, 54, 63
Array: 7 rows, 9 in each row
One less in tens place, product's digits add to 9.
Susan has 4 bags of candy bars. There are 9 candy bars in each bag. Write an equation with answer. Label your answer!
4 x 9 = 36 Candy bars
Which has the greatest product?
a. 4 x 5
b. 8 x 0
c. 9 x 3
d. 12 x 1
c. 9 x 3
What is the missing factor?
6 x ___ = 0
0
Show a strategy to solve 8 x 2.
Skip counting: 2, 4, 6, 8, 10, 12, 14, 16
Array: 8 rows, 2 in each row.
Number line: 8 hops of 2
Which is greater? How do you know?
8 x 10 OR 5 x 9
8 x 10 = 80
5 x 9 = 45
80>45
Mrs. Trieger has 5 necklaces. Each necklace has 10 beads on it. How many beads are there in all? Write and solve an equation. Label your answer!
5 x 10 = 50
There are 2 gloves in a pair of gloves. How many gloves are there in 5 pairs of gloves? Write an equation or show a strategy you used to find your answer,
2 x 5 = 10 gloves.
Skip count 2, 4, 6, 8, 10
Repeated addition: 2+2+2+2+2
Array: 5 rows, 2 in each row
Number line: 5 hops of 2
Solve and show your strategy.
4 x 1
4 x 1 = 4
Skip counting: 4
Array: 4 rows, 1 in each row
Which is greater? How do you know?
3 x 5 OR 2 x 7
3 x 5 = 14 because 2 x 7= 14.
15 > 14
Skip count by 9s for this equation:
5 x 9
9, 18, 27, 36, 45
Miss Johannes baked 8 cakes. She cut each cake into 2 pieces. How many pieces of cake is that in all?
16 pieces of cake
Cruz is thinking of a number that is a multiple of 9. Which of the following could be his number? Choose all that apply.
a. 75
b. 18
c. 27
d. 40
e. 54
b. 18
c. 27
e. 54
Which has the greatest product?
a. 4 x 0
b. 1 x 1
c. 8 x 1
d. 0 x 3
e. 1 x 6
8 x 1
If you made an array for 6 x 5, how many rows would you draw? How many would be in each row? What would the product be?
6 rows, 5 in each row
The product is 30.
Skip count by 5s for this equation:
4 x 5
5, 10, 15, 20
A garden has 6 rows of flowers. There are 9 flowers in each row. How many flowers are there? Don't forget to label your answer!
6 x 9 = 54 flowers
Ms. Lueking wrote the following equations on the board. Which are true? Choose all that apply.
a. 72 x 0 =72
b. 17 x 1 = 17
c. 12 x 3 = 3 x 12
d. 24 + 1 = 24
e. 150 x 0 = 0
b. 17 x 1 = 17
c. 12 x 3 = 3 x 12
e. 150 x 0 = 0
What is the correct symbol? >, < =
a. 4 x 1 ___ 9 x 0
b. 6 x 0____ 0 x 0
c. 0 x 1 ___ 1 x 1
d. 7 x 1____ 1 x 7
a. >
b. =
c. <
d. =
Which of the following are multiples of 2 AND multiples of 5? Choose all that apply?
a. 15
b. 20
c. 18
d. 10
e. 27
20 and 10.
Make an array for this equation:
2 x 7
x x
x x
x x
x x
x x
x x
x x
There are 6 tables in the classroom. 2 students sit at each table. How many students are there? Write and solve an equation. Don't forget the label.
6 x 2= 12 students
Write a multiplication story.
Mrs. T will check answers.