2 and 5 as Factors
9 as a Factor
Multiplying with 0 and 1
10 as a Factor
Multiplying by Multiples of 10
100
What is 2 x 2?
4
100
What is 6 x 9?
54
100
What is 3 x 0?
0
100
What is 10 x 8?
80
100
5 x 40=
200 5 x 4 = 20 so... 5 x 40 is 200
200
What is 5 x 2?
10
200
What is 8 x 9?
72
200
What is 7 x 1?
7
200
What is 10 x 6?
60
200
What is 7 x 30?
7 x 3 is 21 so... 7 x 30= 210
300
What is 8 x 2?
16
300
What is 4 x 9?
36
300
Which is greater? 8 x 1 OR 9 x 0
8 x 1 = 8 9 x 0= 0 so it's 8 x 1
300
Mai had 3 packs of pens. Each pack had 10 pens. She gave 5 pens to Ervin. How many pens did she have left?
25 pens
300
9 x 90=
9 x 9 = 81 so... 9 x 90= 810
400
Multiply 7 by 5.
35
400
Mr. Sayles paid $9 each day to take the train to work. What is the total that Mr. Sayles paid after 3 days of work?
$27
400
What is the name of the property for multiplying with 0?
The Zero Property
400
Cesar buys 4 packs of crayons on sale. There are 10 crayons in each box. He loses one crayon. How many crayons does Cesar still have?
39 crayons
400
Juanita buys 7 sheets of postage stamps at the post office. Each sheet has 20 stamps. How many stamps did she buy in all?
140 stamps
500
Find the product of 5 times 6.
30
500
Hannah is counting by 9s. What are the first five numbers in Hannah's pattern starting with 9.
9, 18, 27, 36, 45
500
What is the name of the property for multiplying with 1?
The Identity Property
500
Explain the trick for multiplying with 10s. Give an example.
You look for the basic fact first. Multiply the basic fact. Add a zero to your product afterwards. For example, 9 x 10. The basic fact is 9 x 1 = 9. Add a zero to the end of your product so 90 is the answer.
500
Explain how to multiply by multiples of 10. Give an example.
You look for the basic fact first. Solve for the basic fact's product. Then add a zero to your product. For example, 80 x 3. 8 x 3 is the basic fact. So the product is 24. Add a zero, the answer is 240.
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