# U2.L2.3-Multiplying.Dividing decimals

Unit 2: Lesson 2 and 3
Multiplying and Dividing Decimals
Unit 2: Lesson 2 and 3
Multiplying and Dividing Decimals

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Slide 1: Slide

This lesson contains 11 slides, with interactive quizzes and text slides.

## Items in this lesson

Unit 2: Lesson 2 and 3
Multiplying and Dividing Decimals
Unit 2: Lesson 2 and 3
Multiplying and Dividing Decimals

#### Slide 1 -Slide

What is the most important thing a student needs to do when adding or subtracting decimals

#### Slide 2 -Open question

1. a+b=b+a is an example of the

2.  (2x3) x 4 = 2 x (3x4) is an example of the

3. 5 x0 = 0 is an example of the

4.  3+0 = 3  and 4x1=4 are both examples of the
Commutative Property
Associative Property
Zero Property
Identity Property

#### Slide 3 -Drag question

What do we do with decimals when multiplying?
Example: .05 x.03

#### Slide 4 -Mind map

Put the steps in order for dividing the following problem.     .081/.09
find the number of decimal points in each number.  .081 =3    .09 = 2

subtract the number of decimal points of the dividend and the divisor. 3-2 =1
Turn both decimals into whole numbers. .081- >81     .09->9
divide the whole numbers. 81 / 9 = 9
Move the decimal on the whole number to the left by the difference of the decimal points.    9. -> .9

0.9 x 0.7
A
63
B
6.3
C
.63
D
.063

10 x 0.05
A
0.50
B
50
C
5
D
.05

0.050/.1
A
0.05
B
50
C
5
D
.5

4.5 / 5
A
.9
B
9
C
0.09
D
90

7.3 x 7.0
A
511
B
.511
C
5.11
D
51.1

#### Slide 10 -Quiz

Complete the exit ticket at the following link
Complete the exit slip at the link below!