Multiply a Number by Multiples of Ten Lesson

5 Slides • 12 Questions

1

Multiplying by Multiples of 10

Using number disks and place value charts to understand Multiplying by Multiples of 10

2

$2\times3$

$2\times3$ ones
$6$ ones
$6$ ones $=6$
$2\times3=6$

3

$2\times30$

$2\times3$ tens
$6$ tens
$6$ tens $=60$
$2\times30=60$

4

Open Ended

How is $2\times30$ similar to $2\times3$ ?

Type response here

5

Poll

How do you feel about multiplying by multiples of 10 using number disks?

This makes perfect sense. I've got this!

I'll have it after a few practice examples.

Could you explain that one more time?

6

Multiple Choice

3 x 30

1

9 ones

2

330

3

9 tens

4

33

7

Multiple Choice

3 x 50

1

350

2

150

3

15

4

53

8

$2\times5$

$2\times5$ ones
$10$ ones
$10$ ones $=10$
$2\times5=10$

9

$2\times50$

$2\times5$ tens
$10$ tens
$10$ tens $=100$
$2\times50=100$

10

Open Ended

What changed from

2\times5

to

2\times50

?

Type response here

11

Poll

How do you feel about multiplying by multiples of 10 using a place value chart?

This makes perfect sense. I've got this!

I'll have it after a few practice examples.

Could you explain that one more time?

12

Multiple Choice

$2\times4$

1

8

2

6

3

80

4

8 tens

13

Multiple Choice

$2\times4$ tens

1

80

2

8

3

6

4

60

14

Open Ended

What changed from

2\times4

to

2\times40

?

Type response here

15

Multiple Choice

$4\times5$

1

20 tens

2

9

3

20

4

45

16

Multiple Choice

$4\times50$

1

450

2

200

3

20 ones

4

200 tens

17

Open Ended

What changed from

4\times5

to

4\times50

?

Type response here

Multiplying by Multiples of 10

Using number disks and place value charts to understand Multiplying by Multiples of 10

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