Multiplication Powerpoint

Post on 10-May-2015

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Transcript of Multiplication Powerpoint

Created by Jimmy Dodson

If Amy had 3 cats and each one had 4 legs, how could we find how many legs all the cats had?

=4 legs

=4 legs

=4 legs

=12 legs

+

Another way to figure out the answer is to multiply. Multiplication is a fast way to add equal numbers. Since all 3 cats have 4 legs, instead of adding them together, we could multiply.

4 legs

3 cats

12 legs

X

How many legs altogether wouldtwo boys have?

Can you think of a multiplication problem that shows this?

2 boys

2 legs

4 legs

X

If a crayon box holds 7 crayons,how many crayons would 2 boxes hold?

Can you think of a multiplication problem that shows this?

2 boxes

7 crayons

14 crayons

X

If every teacher has 3 books and there are 5 teachers, how many books do they all have?

Can you think of a multiplication problem that shows this?

3 books

5 teachers

15 books

X

If every desk has 1 apple and there are 9 desks, how many apples are there in all?

Can you think of a multiplication problem that shows this?

1 apple

9 desks

9 apples

X

Multiplication involves sets of objects. Can you write a multiplcation problem for these sets?

I think I can do it!

5 sets of 2 each

5 X 2 =10

3 sets of 4 each

3 X 4 = 12

3 sets of 3 each

3 X 3 = 9

4 sets of 2 each

4 X 2 = 8

6 sets of 3 each

3 X 6 = 18

5 sets of 4 each

5 X 4 = 20

On your paper, draw sets to represent each of the following multiplication problems. Then solve the problems. Click on the to find the answer.

2 X 9=

5 X 5=

8 X 1=

5 X 1=

4 X 0=

6 X 4=

2 X 9=18

Let’s try another!

5 X 5=

Let’s try another!

8 X 1=

Let’s try another!

5 X 1=

Let’s try another!

4 X 0=

Let’s try another!

6 X 4=

If you want to do this practice again, click the button.