# Multiplying/dividing by powers of 10

Good afternoon!
Schedule:
• Learning goals
• Last time
• Multiplying and dividing by powers of 10
• Worksheet (3 levels)
1 / 11
Slide 1: Slide
WiskundeMiddelbare schoolvwoLeerjaar 2

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

## Items in this lesson

Good afternoon!
Schedule:
• Learning goals
• Last time
• Multiplying and dividing by powers of 10
• Worksheet (3 levels)

#### Slide 1 -Slide

Learning goals
At the end of this lesson I can:
• Multiply decimal numbers by various powers of 10
• Divide decimal numbers by various powers of 10
• Choose an appropriate level for my learning

#### Slide 2 -Slide

What did we do last time?

#### Slide 3 -Mind map

Give a power of 10

#### Slide 4 -Mind map

True
False
2.89 ⋅ 10 = 28.9
41.39 ÷ 10 = 4.139
2.89 ⋅ 1000 = 289
517 ÷ 100 = 51.7
6.986 ⋅ 100 = 6989
1.89 ÷ 1000 = 0.0089

#### Slide 5 -Drag question

Multiplying by powers of 10

2.987 ⋅ 10 = 29.87

Dividing by powers of 10

2.987 ÷ 10 = 0.2987

#### Slide 6 -Slide

Multiplying by powers of 10

2.987 ⋅ 10 = 29.87
10 = 101
Decimal moves 1 place to the right

Dividing by powers of 10

2.987 ÷ 10 = 0.2987
10 = 101
Decimal moves 1 place to the left

23.56 ÷ 100 =

A
2.356
B
235.6
C
0.2356
D
2356

23.56 ⋅ 100 =

A
2.356
B
235.6
C
0.2356
D
2356

#### Slide 9 -Quiz

Worksheet
Choose a worksheet level:

Level 1: Multiplying and dividing in standard form
Level 2: Multiplying and dividing in exponent form
Level 3: Multiplying and dividing in exponent form (with negative exponents)

Choose a level and work on that worksheet from ManageBac: Files: Unit 2