GCSE Secondary Maths Age 13-17 - Number: Decimal Places - Explained

The video tutorial explains how to round a number to three decimal places. It begins by writing the number fully and counting three digits after the decimal point. A dotted line is drawn to separate the digits, and the rounding process is explained, focusing on whether the digit is five or more. The final rounded answer is provided, along with the scoring for the question.

What is the first step in rounding a number to three decimal places?

• Count the digits before the decimal.

• Write the number in full.

• Round up the last digit.

• Draw a line after the third digit.

How many digits should be counted after the decimal point for rounding to three decimal places?

• Three

• Two

• Five

• Four

What should you do after counting the digits for rounding?

• Erase the extra digits.

• Multiply the number by ten.

• Draw a dotted line after the third digit.

• Add a zero at the end.

What happens if the digit after the rounding line is five or more?

• The number stays the same.

• The number is rounded down.

• The number is rounded up.

• The number is divided by two.

What is the final rounded number in the example provided?

• 7.266

• 7.265

• 7.264

• 7.263