Page 106 - Maths Class 05

8 tenths × 10 = 8 ones (0.8 × 10 = 8) 4 ones 9 tenths × 10
= 4 tens 9 ones (4.9 × 10 = 49)

Multiplying a decimal by 10 moves the decimal point 1 place to the right.

832 8
3. 8.32 × 100 = × 100 = 832 4. 0.8 × 100 = × 100
100 10

= 8 × 10 = 80
Hundreds Tens Ones Tenths Hundredths
8 3 2 ×100 Tens Ones Tenths

8 3 2 8 ×100
8
8 ones 3 tenths 2 hundredths × 100
8 tenths × 100 = 8 tens
= 8 hundreds 3 tens 2 ones

Multiplying a decimal by 100 moves the decimal point 2 places to the right.

5
5. 0.005 × 1000 = × 1000 = 5
1000

Ones Tenths Hundredths Thousandths

5 ×1000
5

5 thousandths × 1000 = 5 ones

6. 6.938 × 1000 = 6938

Thousands Hundreds Tens Ones Tenths Hundredths Thousandths
6 9 3 8 ×1000

6 9 3 8

6 ones 9 tenths 3 hundredths 8 thousandths × 1000 = 6 thousands 9 hundreds
3 tens 8 ones

Multiplying a decimal by 1000 moves the decimal point 3 places to the right.

Properties of Multiplication of Decimal Numbers

We have already studied the properties of multiplication. All properties of
multiplication hold true for decimals.

Mathematics-5 106