6th grade Q1
Меню
How do you multiply mentally decimals up to 2 decimals places by 0.1?
To multiply a decimal number by 0.1 mentally, you can use a simple technique that involves moving the decimal point.
When you multiply by 0.1, you are essentially dividing the number by 10.
This means you need to move the decimal point one place to the left.
Example 1:
If you have the number 359.4, multiplying it by 0.1 would involve moving the decimal point one place to the left, resulting in 35.94.
Example 2:
Similarly, for a number like 193.72, multiplying by 0.1 would give you 19.372.
This method is efficient and quick, allowing you to perform the calculation without needing paper or a calculator.
