Round a decimal number with hundredths to the nearest whole number
I can round a decimal number with hundredths to the nearest whole number
Round a decimal number with hundredths to the nearest whole number
I can round a decimal number with hundredths to the nearest whole number
Lesson details
Key learning points
- Identify the next and previous whole numbers to the number being rounded.
- Identify which whole number is nearest to the number being rounded.
- If the value of the tenths is 5 or greater then round up to the next whole number.
- If the value of the tenths is less than 5, ignore the tenths and round down to the whole number.
- To round a number with hundredths to the nearest whole number, you only need to look at the tenths.
Common misconception
Pupils may mistake the previous multiple of one for example: previous multiple of 6.38 being 5.
Ensure pupils are given plenty of opportunities to place numbers on number lines, identifying the previous and next multiples of one.
Keywords
Multiple - A multiple is the result of multiplying a number by an integer. For example 2 × 5 = 10 so 10 is a multiple of 2 and 5.
Previous - Something that comes before something else is known as the previous thing.
Next - Something that comes after something else is known as the next thing.
Rounding - Rounding means making a number simpler but keeping its value close to what it was.
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
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