Multiplying a number by 10, 100, 1000, etc. -
¨ Multiplication by 10
1. a) 354 x 10 = 3540 (One zero is added at the end)
b) 2,678 x 10 = 26,780
¨ Multiplication by 100
2. a) 437 x 100 = 43,700 (Two zeroes are added at the end)
b) 82,347 x 100 = 82,34,700
¨ Multiplication by 1000
3. a) 362 x 1000 = 3,62,000 (Three zeroes are added at the end)
b) 7,646 x 1000 = 76,46,000
Some Other Important Results -
In case of multiplying two numbers where both the number contains zero, then in obtain product we will put all or sum of given number of 0 (zero) along with.
a) 12,500 x 50 = 6,25,000
or, (125 X 5) X 1000 = 6,25,000
b) 3,210 X 2,000 = 64,20,000
or, (321 X 2) X 10, 000 = 64,20,000
c) 240 X 50 = 12,000
or, (24 X 5) X 100 = 120 X 100 = 12,000
d) 4500 X 600 = 27,00,000
or, (45 X 6) X 10,000 = 270 X 10,000 = 27,00,000
e) 12400 X 250 = 31,00,000
or, (124 X 25) X 1000 = 3100 X 1000 = 31,00,000
1) Some other way of multiplication by 10, 100, 1000.