Patterns with Multiples of 10
How can you use place value to multiply?
5 x 40
___ x _____ tens= _____ tens
So, 5 x 40 = __________ ?
How can you use place value to multiply?
5 x 40
5 x 4 tens= 20 tens
So, 5 x 40 = 200
True or false
The order of the factors doers change the product.
False, the order of the factors does not change the property.
How can you solve the equation two ways?
4x3x2=?
(4 x 3) x 2=
12 x 2= 24
4 x (3 x 2)=
4 x 6= 24
Avery brings juice boxes to soccer practice. He needs 2 juice boxes for each of the 9 players. The juice boxes are in packages of 6.
How many juice boxes does Avery need to bring?
Step 1: 9 x 2=b
18=b
Step 2: 18 divided by 6=p
3=p
A missing number or the number to be solved for, is called the ________.
unknown
How can you use place value to multiply?
6 x 50
___ x _____ tens= _____ tens
So, 6 x 50 = __________ ?
How can you use place value to multiply?
6 x 50
6 x 5 tens= 30 tens
So, 6 x 50 = 300
True or False
Products of 4's facts are double the products of 2's facts.
True
How can you solve the equation two ways?
3x3x4=?
(3x3) x 4=?
9 x 4= 36
3 x (3 x 4)=?
3 x 12= 36
Melody had 6 grapes. Her sister had 14 grapes. Her and her sister shared them equally. How many grapes does Melody eat?
Step 1: 6+14=g
Step 2: 20 divided by 2= a
10=a
Which of the following is a way to decompose 40 x 5?
a. 10 x 4 x 5
b. 10 x 4 + 5
c. 10 + 4 x 5
a. 10 x 4 x 5
How can you use place value to multiply?
7 x 90
___ x _____ tens= _____ tens
So, 7 x 90 = __________ ?
How can you use place value to multiply?
7 x 90
7 x 9 tens= 63 tens
So, 7 x 90 = 630
Which multiplication facts will have an even product?
a. 4x5
b. 1x9
c. 5x7
d. 10x6
Which multiplication facts will have an even product?
a. 4x5
d. 10x6
How can you solve the equation two ways?
2 x 3 x 3=?
How can you solve the equation two ways?
2 x 3 x 3=?
(2 x 3) x 3=?
6 x 3=18
2 x (3 x 3)=?
2 x 9= 18
Seth shares 56 erasers equally among 8 friends. Then he gives each friend additional 3 erasers. How many erasers does each friend receive?
Step 1: 56 divided by 8= e
Step 2: 7+3=10
Each friend will receive 10 erasers.
Which of the following expressions could be used to find the product of 3 x 4 x 2?
a. 7 x 2
b. 5 x 7
c. 12 x 2
d. 12 x 6
c. 12 x 2
How can you decompose the multiple of 10 to multiply?
4 x 90
4 x __ x 10
____ x _____ = ______
How can you decompose the multiple of 10 to multiply?
4 x 90
4 x 9 x 10
36 x 10 = 360
Fill in the blanks using these words: sometimes, never, always
Products of 6's facts are _____ double the products of 3's facts.
Products of 7's facts are _____ even.
Products of 4's facts are ______ odd.
Fill in the blanks using these words: sometimes, never, always
Products of 6's facts are always double the products of 3's facts.
Products of 7's facts are sometimes even.
Products of 4's facts are never odd.
What is the unknown number in the expression? Complete the expression
5 x 2 x 3
_____ x 3 = ________
What is the unknown number in the expression? Complete the expression
5 x 2 x 3
10 x 3 = 30
Kyrie and Daniel help fix a fence. They are buying 8 boxes of nails for $5 each. Kyrie and Daniel split the cost equally between the 2 of them when checking out. How much does each pay?
They each pay $20.
How many tens will the product have? What is the product?
3 x 20=?
= ____ tens
= _______
3 x 20=?
= 6 tens
= 60
How can you decompose the multiple of 10 to multiply?
3 x 70
3 x __ x 10
____ x _____ = ______
How can you decompose the multiple of 10 to multiply?
3 x 70
3 x 7 x 10
21 x 10 = 210
How do the multiples of 10 relate to the multiples of 5?
When you double the multiple of 5, you get the multiple of 10.
What is the unknown number in the expression? Complete the expression
6 x 3 x 3=?
6 x ______ = ________
What is the unknown number in the expression? Complete the expression
6 x 3 x 3=?
6 x 9= 54
Naomi's photo album has 12 pages and each page has 5 photos. She decides to put all the photos already in her album on just 6 pages. She puts the same number of photos on all 6 pages. How many photos will she put on each page?
Step 1: 12 x 5=60
Step 2: 60 divided by 6= 10 photos
Logan uses 40 gallons of water a day to water his garden. How can you use place value to find how many gallons of water he uses for 5 days?
5 x 40= ____ x ____ tens= _____tens; _____ tens
= _____ galloons
5 x 40= 5 x 4 tens=20 tens;
20 tens= 200 galloons