MULTIPLICATION AND DIVISION BY 10, 100, 1000

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Presentation transcript:

MULTIPLICATION AND DIVISION BY 10, 100, 1000 x 10 move digits one place to left x 100 move digits two places to left x 1000 move digits three places to left  10 move digits one place to right  100 move digits two places to right  1000 move digits three places to right

Millions Hundred Thousands Ten Thousands Thousands Hundreds Tens Units

M H Th T Th Th H T U t h th 1

M H Th T Th Th H T U t h th

MULTIPLICATION WITH DECIMALS PRACTICE 0.5 x 10 = ……. 0.67 x 10 = …….. 0.4 x 100 = …….. 100 x 0.8 = …….. 0.21 x 10 = …….. 0.78 x 100 = …….. 0.05 x 100 = …….. 0.04 x 10 = …….. 1000 x 0.03 = …….. ……. x 0.2 = 200

DIVISION WITH DECIMALS PRACTICE U t h 5 ÷ 10 = ……. 67 ÷ 10 = …….. 0.4 ÷ 10 = …….. 100 x 0.8 = …….. 2.1 ÷ 10 = …….. 7.08 ÷ 10 = …….. 5 ÷ 100 = …….. 40 ÷ 100 = …….. 54 ÷ 100 = …….. 20.1 ÷ 10 = ……..

MULTIPLICATION WITH LARGE NUMBERS 200 x 5 2 x 5 = …….. 200 x 5 = …….. 8 x 300 8 x 3 = …….. 8 x 300 = …….. 7 x 40 7 x 4 = …….. 7 x 40 = …….. 3 x 40 3 x 4 = …….. 3 x 40 = …….. 3 x 50 3 x 5 = …….. 3 x 50 = …….. 900 x 4 9 x 4 = …….. 900 x 4 = …….. x 10 x 10 x 100

MULTIPLICATION WITH LARGE NUMBERS 2 x 400 = 3 x 50 = 900 x 4 = 30 x 5 = 80 x 2 = 700 x 3 = 4 x 300 = 9 x 90 = Start with easy numbers like 2 x 4. Then decide whether to multiply that by 10, 100 or 1000.

DIVISION WITH LARGE NUMBERS 1. 80  2 = How many 2s in 8? ……. How many 2s in 80? ……. 2. 120  3 = How many 3s in 12? .….. How many 3s in 120? …… 3. 200  4 = How many 4s in 20? ….. How many 4s in 200? ….. 4. 60  2 = How many 2s in 6? ……. How many 2s in 60? ……. 5. 180  3 = How many 3s in 18? .….. How many 3s in 180? …… 6. 160  4 = How many 4s in 16? ….. How many 4s in 160? …..

DIVISION WITH LARGE NUMBERS 1. 80  20 How many 20s in 80? ………. 2. 120  30 How many 30s in 120? ……. 3. 200  40 How many 40s in 200? …. 4. 300  50 How many 50s in 300? …. 5. 3000  50 How many 50s in 3000? …. ……. x 70 = 350 50 x …… = 3500 5 x ……. = 3500 7 x …… = 350 50 x ….. = 35000

7 x 100

10 x 950

860 ÷ 10

5600 ÷ 100

0.9 x 10

0.12 x 100

6.7 ÷ 10

6.3 x 10

0.02 x 100

700 ÷ 1000

1.02 x 10

3.6 ÷ 10

23 ÷ 10

78 x 100

34 ÷ 100

78 ÷ 100

24.1 x 10

800 ÷ 20

120 ÷ 40

600 ÷ 20

150 ÷ 30

180 ÷ 30

800 ÷ 4

60 ÷ 3

90 ÷ 3

120 ÷ 4

80 x 20

50 x 30

8 x 40

70 x 20

700 x 3

40 x 50

90 x 30

600 x 40

500 x 3

EXTRA LARGE NUMBERS! Million 106 1 000 000 Billion 109 1 000 000 000 Trillion 1012 1 000 000 000 000 Quadrillion 1015 1 000 000 000 000 000 Quintillion 1018 1 000 000 000 000 000 000 Sextillion 1021 1 000 000 000 000 000 000 000 Septillion 1024 1 000 000 000 000 000 000 000 000

IS THERE A NUMBER LARGER THAN THIS? Octillion 1027 1 000 000 000 000 000 000 000 000 000 Nonillion 1030 1 000 000 000 000 000 000 000 000 000 000 Decillion 1033 1 000 000 000 000 000 000 000 000 000 000 000 Vigintillion 1063 1 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 Trigintillion 1093 1 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 IS THERE A NUMBER LARGER THAN THIS?

A GOOGOLPLEX is a googol to the power of a googol. A GOOGOL is 10100. A GOOGOLPLEX is a googol to the power of a googol. It is such a big number that there isn’t enough space in the known universe to write it out in full !!!