# CLASS-4DIVISION OF DECIMAL BY 10, 100, 1000

DIVISION OF DECIMALS BY 10, 100, and 1000 -

WE HAVE LEARNT

7

a) 7 ÷ 10  = ------ = 0.7     ----->  Seven-tenths

10

7

b) 7 ÷ 100 = ------- = 0.07   -----> Seven-hundredths

100

7

c)  7 ÷ 1000 = ------- = 0.007  -----> Seven-thousandths

1000

Principal/Rules for Division of Decimal Number by 10, 100, 1000 -

1) Convert any number into decimal number.

2) To divide a decimal number by 10, move the decimal point one place to the left from one place.

3) To divide a decimal number by 100, move the decimal point two places

to the left from one place.

4) To divide a decimal number by 1000, move the decimal point three places to the left from one place.

EXAMPLES: Divide the following by 10, 100 and 1000.

1) 75            2) 3.4

Ans.)

75 = 75.0

1a) 75.0 ÷ 10

= 7.50 or 7.5     (Move decimal point one step left from one place)

1b) 75.0 ÷ 100

= 0.75      (Move decimal point two step left from one places.)

1c) 75.0 ÷ 1000

= 075.0 ÷ 1000  (Add a zero in front of 7 to move the decimal point three steps left from one place.)

= 0.075

2a) 3.4 ÷ 10

= 0.34    (Move decimal point one step left from one place)

2b) 3.4 ÷ 100

= 03.4 ÷ 100   (Add a zero in-front of 3 to move the decimal point two step left from one place.)

= 0.034

2c) 3.4 ÷ 1000

= 003.4 ÷ 1000  (Add 2 zeroes in-front of 3 to move the decimal point three step left from one place.)

= 0.0034