Multiplying by 10

PowerPoint Written by James Starbuck 2006

Hundreds Tens Units Tenths HundredthsThousands

To multiply by 10 all the digits move one space to the left.

2 5 9

Hundreds Tens Units Tenths HundredthsThousands

To multiply by 10 all the digits move one space to the left.

2 5 9

0

Multiplying by 100

Hundreds Tens Units Tenths HundredthsThousands

To multiply by 100 all the digits move two spaces to the left.

25 9

0

Division by 10

Hundreds Tens Units Tenths HundredthsThousands

To divide by 10 all the digits move one space to the right.

2 5 9

Hundreds Tens Units Tenths HundredthsThousands

To divide by 10 all the digits move one space to the right.

2 5 9

Division by 100

Hundreds Tens Units Tenths HundredthsThousands

To divide by 100 all the digits move two spaces to the right.

2 5 9

Hundreds Tens Units Tenths HundredthsThousands

To divide by 100 all the digits move two spaces to the right.

9

0

Get your whiteboard!

Red Blue Green Yellow/White

0.05 0.8 3.2 12

X10

0.5 8.0 32 120

Answers

Red Blue Green Yellow/White

0.18 1.2 5.67 25

X10

1.8 12 56.7 250

Answers

Red Blue Green Yellow/White

2.34 3.24 1.8 2.3

X10

23.4 32.4 18 23

Answers

Red Blue Green Yellow/White

0.8 1.2 5 2

X100

80 120 500 200

Answers

Red Blue Green Yellow/White

4.23 1.25 5.1 0.23

X100

423 125 510 23

Answers

Red Blue Green Yellow/White

42 23 5 2

Divide by 10

4.2 2.3 0.5 0.2

Answers

Red Blue Green Yellow/White

532 234 32 21

Divide by 10

53.2 23.4 3.2 2.1

Answers

Red Blue Green Yellow/White

12.3 14.2 3.2 2

Divide by 10

1.23 1.42 0.32 0.2

Answers

Red Blue Green Yellow/White

532 234 320 210

Divide by 100

5.32 2.34 3.2 2.1

Answers

Red Blue Green Yellow/White

3.2 34.2 332.1 253

Divide by 100

0.032 0.342 3.321 2.53

Answers

Well Done Everyone!