New
New
Year 8
Checking understanding of rounding
I can round to the nearest 100 or 10 or whole number or to 1 or 2 decimal places.
New
New
Year 8
Checking understanding of rounding
I can round to the nearest 100 or 10 or whole number or to 1 or 2 decimal places.
Lesson details
Key learning points
- Any number can be rounded to the nearest 10, 100 or 1000.
- A number with one or more decimal places can be rounded to the nearest whole number.
- A numbers with two or more decimal places can be rounded to one decimal place.
- A number with three or more decimal places can be rounded to two decimal places.
Common misconception
When rounding a number, pupils write the first significant digit(s) only. E.g 36 789 is 4.
The use of the place value table shows the magnitude of the number, thus preserving their place value.
Keywords
Round - To change a number into another number that is approximately the same value but is easier to work with. E.g. round 561 to the nearest 10 is 560.
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).
Video
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Starter quiz
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6 Questions
Q1.
Jun writes 378 as approximately 400. Jun has written it to the hundred.
Q2.
Which digit is in the thousands column in 43 978?
Q3.
Which digit is in the tens column in 3492?
Q4.
In the number 57.392, which column is the 3 in?
tens
ones
hundredths
thousandths
Q5.
In the number 57.392, which column is the 2 in?
hundredths
tenths
ones
tens
Q6.
The number that is halfway between 3 and 4 is
Exit quiz
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6 Questions
Q1.
Rounding means to change a number into another number that is the same value but is easier to work with.
Q2.
13 745 rounded to the nearest thousand is .
Q3.
Lucas buys a t-shirt costing £14.75. What is the cost of the t-shirt to the nearest pound?
Q4.
Round 178.358 to 1 decimal place.
Q5.
Round 17.3095 to 2 decimal places.
Q6.
Round 109.3978 to 2 decimal places.