Multiplying Decimals – Tricks // Ex: 0.3 × 0.04 = ? , 1.2 ÷ 0.3 = ?

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Multiplying Decimals – Count the Places

Ex: 0.3 × 0.04

1^st : Ignore the decimals and multiply as whole numbers.

• 3 × 4 = 12

2^nd : Count total decimal places in the numbers you multiplied.

• 0.3 → 1 decimal place
• 0.04 → 2 decimal places
• Total decimal places = 1 + 2 = 3

3^rd : Place the decimal in the product so that it has 3 decimal places.

• 12 → 0.012

Ans: 0.012

Tip: The answer always has the same total number of decimal places as the numbers you multiplied.

2. Dividing Decimals – Shift the Point

Rule: Make the divisor a whole number first.

Ex: 1.2 ÷ 0.3

1^st : Shift the decimal point in the divisor to make it a whole number.

• 0.3 → move 1 place right → 3

2^nd : Shift the decimal point in the dividend the same number of places.

• 1.2 → move 1 place right → 12

3^rd : Divide as usual.

• 12 ÷ 3 = 4

Ans: 4

Tip: Always shift the dividend and divisor the same number of places to make the divisor whole.