Stop right there! Right now on the Maths page on this blog is a great resource ready for you to download! Yes it is a chart explaining the King Henry strategy which employs the greek words kilo, hecto, deca, unit, deci, centi and milli to explain our measurement system and HELP YOU with ALL measurement conversions!
1km = 1000m
1m = 100cm
1cm = 10mm
Multiply when converting to the right (and move that decimal place accordingly)
Divide when converting to the left (and move that decimal place accordingly)
Here is one strategy that may help you when multiplying by decimals to find out the area of your bedroom floor.
Just follow these steps:
- Multiply normally, ignoring the decimal points.
- Then put the decimal point in the answer – it will have as many decimal places as the two original numbers combined.
In other words, just count up how many numbers are after the decimal point in both numbers you are multiplying, then the answer should have that many numbers after its decimal point.
Check out this tutorial video at Math Playground.
Try this strategy when finding out the area of your bedroom floor in metres squared.