Class Notes NCERT Solutions for CBSE Students
Multiplication by 10,100,1000
Look at these examples.
10×7.623 = 76.23
100×7.623 = 762.3
1000×7.623 = 7623
What do you observe?
Multiplying by 10 moves the decimal point one place to the right.
100.289 = 02.89
10×2.89 = 28.9
10×28.9 = 289
Multiplying by 100 moves the decimal point two places to the right.
100×0.395 = 39.5
100×3.95 = 395
100×39.5 = 3950
Multiplying by 1000 moves the decimal point three places to the right.
1000×4.359 = 4359
1000×43.59 = 43590
