Download presentation

Presentation is loading. Please wait.

Published byLillian Kent Modified over 5 years ago

1
Multiplication 3 x 3 = 9 4 x 8 = 32 1 x 6 = 6 6 x 5 = 35

2
If Amy had 3 cats and each one had 4 legs, how could we find how many legs all the cats had?

3
=4 legs =12 legs +

4
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.

5
4 legs 3 cats 12 legs X

6
Multiplication Facts are easiest to learn when... YouYou find patterns. use rhymes. use stories. relate them to what you already know. CheckCheck out a few examples!

7
0x 3 = 0 0x 7 = 0 0x 4 = 0 0x 1 = 0 0x 0 = 0 0x 9 = 0 Zero Pattern 0 times any number is 0

8
Ones Pattern 1 times any number is the same number 1x 3 = 3 1x 7 = 7 1x 4 = 4 1x 1 = 1 1x 2 = 2 1x 9 = 9

9
Twos Pattern 2 times any number is that number doubled 2x 3 = 6 2x 7 = 14 2x 4 = 8 2x 1 = 2 2x 2 = 4 2x 9 = 18

10
We can also use multiplication to find the total number in this set without having to count them.

11
3 x 6 = 18 3 6

12
Multiplication Vocabulary Check out some vocabulary on the next slide

13
Product The answer to a multiplication problem. Factor A number that is multiplied by another number to find a product. Ex: 4 x 6 = 24, 4 and 6 are factors of 24 Multiply - The act of finding the total number of items in a given number of groups when each group contains the same number of items. It is a short cut for addition. Array An arrangement that shows objects in rows and columns. **** **** **** 4 Example: 3 x 4 = 12 3

14
Vocabulary continued Set -a group of items. Times - to multiply. Multiple - the product of a whole number and any other number Ex: the multiples of 3 are 3, 6, 9, 12, 15. **** ****

15
If a crayon box holds 7 crayons, how many crayons would 2 boxes hold?

16
Can you think of a multiplication problem that shows this?

17
2 boxes 7 crayons 14 crayons X

Similar presentations

OK

Multiplying Whole Numbers Lessons 4.1-4.7. Math Vocabulary multiply – to add a # to itself one or more times e.x. 2 + 2 + 2 + 2 + 2 = 10 OR 2(5) = 10.

Multiplying Whole Numbers Lessons 4.1-4.7. Math Vocabulary multiply – to add a # to itself one or more times e.x. 2 + 2 + 2 + 2 + 2 = 10 OR 2(5) = 10.

© 2019 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google