A selection of our very best maths resources entirely free, updated each month.
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Making numbers 100 or 1000 times smaller with up to 4 decimal places.
Using place value charts and multiplying decimals by 10, 100 and 1000.
Round to the nearest 10,100 or 1000.
To multiply by 21, just multiply by 20 and then add the number on. (To multiply by 20, double and times by 10.)
Multiply by 10, 100 and 100 using place value charts
What happens when a number is multiplied or divided by 10, 100 or 1 000?
Multiply a decimal fraction by 10 or 100: remember to move the digits one place to the left or two places to the left.
Multiply decimals by 100.
Multiply the multiples of 100 by a single digit.
Multiply by 10, 100 and 1,000 using Gattegno charts.
Using knowledge of place value and times tables to multiply by 10, 20, 50, 100 and 1000.
Rounding football attendance figures to the nearest 1000 and 10000.
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