Female shopper, brown hair, sunglasses, grey top: When I go shopping I always like to know how much I'm spending.
Rounding always helps me when I'm shopping.
For instance I've paid £1.10 for this sandwich and I could say £1.
Female shopper, brown hair, sunglasses, grey top: I've spend £1.99 on biscuits and that's £2.
Female shopper, brown hair, sunglasses, grey top: Again another sandwich cost me £1.90 and that's £2.
Female shopper, brown hair, sunglasses, grey top: It's much quicker for me to round up the prices as today I spent about £5.
Male chef, blond hair, white tunic: Today we are making the pavlova.
Male chef, blond hair, white tunic: This recipe is for 40, we actually have a function for 115 people.
I've rounded it up to 120 just in case we get more people or someone drops one and we need spare.
Male, dark hair, red top: Estimating is useful when you don't have to be exact.
I know that when I'm sowing grass seed 35g is required for one square metre.
Male, dark hair, red top: I don't have time to measure out 35g each time but experience has taught me that 35g is roughly a handful so that's what I use.
Rounding a number makes it easier to work with. This can be especially useful when dealing with decimals.
Quick tips for tutors
Rounding and estimating includes:
- Information about rounding and estimating - what, why, when and how
- Strategies for rounding up and down
- Key vocabulary used when describing the process of rounding and estimating
- Practical examples of rounding and estimating in every day contexts
- Activities to practise rounding and estimating
Downloadable Factsheets
Entry 3 - Estimating numbers using rounding
Learn how to estimate by rounding numbers
Entry 3 - Understanding why numbers are rounded
Discover why it's useful to round numbers.
Entry 3 - Rounding numbers to the nearest 10 and 100: practical examples
Rounding numbers to the nearest 10 and 100.
Entry 3 - Rounding and estimating numbers: revision
Revise rounding and estimating numbers.
Entry 3 - Rounding numbers to the nearest 10
How to round numbers to the nearest 10.
Entry 3 - Rounding numbers to the nearest 100
How to round numbers to the nearest 100.
Entry 3 - What is rounding?
An introduction to rounding.
Entry 3 - Knowing when to round numbers
How to know when to round numbers.
Level 1 - Estimating then checking: subtraction
How to use estimation methods when subtracting.
Level 1 - Estimating by rounding
How to use estimation when rounding numbers.
Level 1 - Estimating and rounding: key words
A selection of words and phrases used to describe the process of rounding and estimating.
Level 1 - Rules for rounding
A summary of rules used when rounding numbers.
Downloadable Worksheets
Entry 3 - Rounding to the nearest 10
Exercise in rounding numbers to the nearest 10.
Entry 3 - Rounding to the nearest 100
Exercise in rounding numbers to the nearest 100.
Entry 3 - Rounding measurements
Exercise in rounding measurements.
Entry 3 - Rounding money
Exercise in rounding money amounts to help when shopping or comparing prices of goods.
Level 1 - Rounding to the nearest hundred
Exercise in rounding numbers to the nearest hundred.
Level 1 - Rounding to the nearest ten
Exercise in rounding numbers to the nearest ten.
Level 1 - Rounding to the nearest thousand
Exercise in rounding numbers to the nearest thousand.
Level 1 - Estimating answers to calculations: multiple choice
Exercise in using estimating strategies to eliminate possible answers to problems.
Level 1 - Estimating answers to calculations
Exercise in estimating as a strategy for checking the accuracy of calculations.
