then the denominator is 10 and if there are two digits after the decimal point, then the
151tei tie
decimal
denominator is 100.
Let us see what happens if a decimal number is multiplied by 10, 100 and 1000
Observe the following table and complete it.
Try these
235
235
2.35 x 10 = x 10 = = 23.5
100
10
7.63 x 10 =
63.237 x 10 =
235
2.35 x 100 = x 100 = 235=235.0
100
7.63 x 100
63.237 X 100
235
2.35 x 1000 = X 1000 = 2350.0
100
7.63 X 1000 =
63.237 x 1000 =
6
0.6 x 10 = -X10 = 6
10
6
0.6x100= X100
10
6
0.6 x 1000 = -X1000
10
=
4 7th Standard Mathematics
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