© T Madas

© T Madas

Find 7 x 0.1 =

7 x 110

=7

10= 0.7

0.7

Find 32 x 0.01 =

32 x 1100

=32100

=0.32

0.32

Find 1860 x 0.001 =

1860 x 11000

=18601000

= 1.86

1.86

What is one tenth of 7?

What is one hundredth of

32?

What is one thousandth of

1860?

© T Madas

Find 12.5 x 0.1 =

12.5 x 110

=12.510

= 1.25

1.25What is one

tenth of 12.5?

Multiplying by 0.1 is the same as

Multiplying by 0.01 is the same as

Multiplying by 0.001 is the same as

Multiplying by 0.0001 is the same as

etc

dividing by 10

dividing by 100

dividing by 1000

dividing by 10000

What happens if we divide by 0.1, 0.01, 0.001 etc?

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Find 9 ÷ 0.1 =

9 ÷ 110

=101

= 90

90

9 x

How many tenths in 9?

Find 5 ÷ 0.01 =

5 ÷ 1100

=1001

=500

500

5 x

How many hundredths in 5?

© T Madas

Find 32 ÷ 0.001 =

32 ÷ 11000

=1000

1=32000

32000

32x

How many thousandths in 32?

© T Madas

Multiplying by 0.1 is the same as

Multiplying by 0.01 is the same as

Multiplying by 0.001 is the same as

Multiplying by 0.0001 is the same as

etc

dividing by 10

dividing by 100

dividing by 1000

dividing by 10000

Dividing by 0.1 is the same as

Dividing by 0.01 is the same as

Dividing by 0.001 is the same as

Dividing by 0.0001 is the same as

etc

multiplying by 10

multiplying by 100

multiplying by 1000

multiplying by 10000

© T Madas

Practice on

Multiplying & Dividing

by 0.1, 0.01, 0.001 …

© T Madas

Multiply and Divide by 0.1, 0.01, 0.001, etc

43 x 0.1 = 4.3

175 x 0.01 = 1.75

123 x 0.1 = 12.3

58 x 0.001 = 0.058

570 ÷ 0.1 = 5700

86 ÷ 0.1 = 860

32 ÷ 0.01 =3200

412 ÷ 0.1 = 4120

8.6 ÷ 0.1 = 86

4.7 ÷ 0.01 = 470

1.25 ÷ 0.1 =12.5

2.813 ÷ 0.001 = 2813

42 x 0.1 = 4.2

465 x 0.01 = 4.65

320 x 0.01 =3.2

4109 x 0.01 = 41.09

© T Madas

66 ÷ 0.1 = 660

31 x 0.1 = 3.1

14.9 ÷ 0.1 =149

10 x 0.1 = 1

100 ÷ 0.1 = 1000

7500 x 0.1 = 750

4.52 ÷ 0.1 = 45.2

34 ÷ 0.1 = 340

2.6 ÷ 0.1 = 26

8.7 ÷ 0.01 = 870

17.5 x 0.1 = 1.75

439.4 x 0.001 = 0.4394

213 x 0.1 = 21.3

465 ÷ 0.1 = 4650

0.87 ÷ 0.1 = 8.7

0.015 ÷ 0.001 = 15

Multiply and Divide by 0.1, 0.01, 0.001, etc

© T Madas

131 x 0.1 = 13.1

35 ÷ 0.1 = 350

0.5 x 0.1 = 0.05

0.7 ÷ 0.1 = 7

0.93 x 0.1 =0.093

18 ÷ 0.01 = 1800

2.7 x 0.01 =0.027

0.41 ÷ 0.01 = 41

9.63 x 0.1 = 0.963

5.52 ÷ 0.1 = 55.2

0.05 x 0.1 = 0.005

0.04 ÷ 0.001 = 40

0. 02 x 0.01 =0.0002

35 ÷ 0.1 = 350

0.091 ÷ 0.001 = 91

1876 x 0.01 = 18.76

Multiply and Divide by 0.1, 0.01, 0.001, etc

© T Madas

Practice on

Multiplying & Dividing

by Powers of 10

© T Madas

16 ÷ 0.1 =160

1.23 x 10 = 12.3

48 ÷ 10 = 4.8

0.58 x 10 =5.8

57 ÷ 1000 = 0.057

8.6 ÷ 0.01 = 860

32 ÷ 10 = 3.2

41 x 0.1 = 4.1

0.65 x 100 = 65

2.71 ÷ 0.01 = 271

2.25 x 10 =22.5

4.916 ÷ 0.001 = 4916

52 ÷ 1000 = 0.052

375 x 0.01 =3.75

665 x 0.1 = 66.5

792 ÷ 0.1 =7920

Multiply and Divide by Powers of 10

© T Madas

151 ÷ 0.1 = 1510

364 x 0.01 = 3.64

0.2 x 10 = 2

0.83 ÷ 10 = 0.083

930 x 0.01 = 9.3

18 ÷ 0.01 = 1800

17 ÷ 100 = 0.17

413 x 0.1 = 41.3

7.62 ÷ 10 =0.762

1.92 x 0.1 = 0.192

0.85 x 1000 =850

6.006 x 1000 = 6006

72 ÷ 1000 = 0.072

305 ÷ 0.01 =30500

609 x 0.001 = 0.609

1656 x 0.01 = 16.56

Multiply and Divide by Powers of 10

© T Madas

16.1 ÷ 0.1 =161

3.64 x 10 = 36.4

9.2 x 0.1 = 0.92

0.83 ÷ 10 =0.083

93 ÷ 100 = 0.93

1825 ÷ 0.01 = 18.25

1.7 x 0.1 = 0.17

0.04 x 10 = 0.4

7.62 ÷ 10 =0.762

1.48 ÷ 0.1 = 14.8

411 x 0.01 = 4.11

0.096 x 1000 = 96

27 ÷ 1000 = 0.027

305 x 0.001 = 0.305

609 ÷ 0.1 = 6090

96 x 0.0001 = 0.0096

Multiply and Divide by Powers of 10

© T Madas

Quick Test on

Multiplying & Dividing

by 0.1, 0.01, 0.001 …

© T Madas

Multiply and Divide by 0.1, 0.01, 0.001, etc

43 x 0.1 = 4.3

175 x 0.01 = 1.75

123 x 0.1 = 12.3

58 x 0.001 = 0.058

570 ÷ 0.1 = 5700

86 ÷ 0.1 = 860

32 ÷ 0.01 =3200

412 ÷ 0.1 = 4120

8.6 ÷ 0.1 = 86

4.7 ÷ 0.01 = 470

1.25 ÷ 0.1 =12.5

2.813 ÷ 0.001 = 2813

42 x 0.1 = 4.2

465 x 0.01 = 4.65

320 x 0.01 =3.2

4109 x 0.01 = 41.09

© T Madas

66 ÷ 0.1 = 660

31 x 0.1 = 3.1

14.9 ÷ 0.1 =149

10 x 0.1 = 1

100 ÷ 0.1 = 1000

7500 x 0.1 = 750

4.52 ÷ 0.1 = 45.2

34 ÷ 0.1 = 340

2.6 ÷ 0.1 = 26

8.7 ÷ 0.01 = 870

17.5 x 0.1 = 1.75

439.4 x 0.001 = 0.4394

213 x 0.1 = 21.3

465 ÷ 0.1 = 4650

0.87 ÷ 0.1 = 8.7

0.015 ÷ 0.001 = 15

Multiply and Divide by 0.1, 0.01, 0.001, etc

© T Madas

131 x 0.1 = 13.1

35 ÷ 0.1 = 350

0.5 x 0.1 = 0.05

0.7 ÷ 0.1 = 7

0.93 x 0.1 =0.093

18 ÷ 0.01 = 1800

2.7 x 0.01 =0.027

0.41 ÷ 0.01 = 41

9.63 x 0.1 = 0.963

5.52 ÷ 0.1 = 55.2

0.05 x 0.1 = 0.005

0.04 ÷ 0.001 = 40

0. 02 x 0.01 =0.0002

35 ÷ 0.1 = 350

0.091 ÷ 0.001 = 91

1876 x 0.01 = 18.76

Multiply and Divide by 0.1, 0.01, 0.001, etc

© T Madas

Quick Test on

Multiplying & Dividing

by Powers of 10

© T Madas

16 ÷ 0.1 =160

1.23 x 10 = 12.3

48 ÷ 10 = 4.8

0.58 x 10 =5.8

57 ÷ 1000 = 0.057

8.6 ÷ 0.01 = 860

32 ÷ 10 = 3.2

41 x 0.1 = 4.1

0.65 x 100 = 65

2.71 ÷ 0.01 = 271

2.25 x 10 =22.5

4.916 ÷ 0.001 = 4916

52 ÷ 1000 = 0.052

375 x 0.01 =3.75

665 x 0.1 = 66.5

792 ÷ 0.1 =7920

Multiply and Divide by Powers of 10

© T Madas

151 ÷ 0.1 = 1510

364 x 0.01 = 3.64

0.2 x 10 = 2

0.83 ÷ 10 = 0.083

930 x 0.01 = 9.3

18 ÷ 0.01 = 1800

17 ÷ 100 = 0.17

413 x 0.1 = 41.3

7.62 ÷ 10 =0.762

1.92 x 0.1 = 0.192

0.85 x 1000 =850

6.006 x 1000 = 6006

72 ÷ 1000 = 0.072

305 ÷ 0.01 =30500

609 x 0.001 = 0.609

1656 x 0.01 = 16.56

Multiply and Divide by Powers of 10

© T Madas

16.1 ÷ 0.1 =161

3.64 x 10 = 36.4

9.2 x 0.1 = 0.92

0.83 ÷ 10 =0.083

93 ÷ 100 = 0.93

1825 ÷ 0.01 = 18.25

1.7 x 0.1 = 0.17

0.04 x 10 = 0.4

7.62 ÷ 10 =0.762

1.48 ÷ 0.1 = 14.8

411 x 0.01 = 4.11

0.096 x 1000 = 96

27 ÷ 1000 = 0.027

305 x 0.001 = 0.305

609 ÷ 0.1 = 6090

96 x 0.0001 = 0.0096

Multiply and Divide by Powers of 10

© T Madas

© T Madas