Top answers


How do I find the prime factors of a number?

The most common way of doing this is called a bubble search (this may not be the technical name, but it's the one I was taught). The method is as follows: Start by writing the number at the top of your page....
SG
Answered by Seb G. • Maths tutor
4692 Views

How do I multiply decimal numbers?

Start by multiplying the two numbers as though they didn't have a decimal point (e.g. 2.7 3.6 becomes 27 36 = 972). Now add up how many decimal places were in the original two numbers (e.g. 2.7 and 3.6 have ...
SG
Answered by Seb G. • Maths tutor
5522 Views

What is the difference between ratios and fractions?

Both are different ways to represent an amount of something. Fractions show how much of a whole item there is for example 2/10 2 parts out of a total of 10. On the other hand, a ratio describes one amount re...
AC
Answered by Alice C. • Maths tutor
8088 Views

How do I work out the area of a rectangle

ok. Well think about a square. What times what creates the area of a square? Yes the bottom one and side on. So which do you think will be useful to know to find the area of a rectangle? Yes the same! So the...
CW
Answered by Charlotte W. • Maths tutor
4008 Views

The cost of 5 calculators is £35. Work out the cost of 8 of these calculators.

If the cost of 5 calculators is equal to £35, then we can use division to figure out how much one calculator costs. If we divide 35 by 5 we get the number 7. This means that one of the calculators is going t...
DS
Answered by Danielle S. • Maths tutor
5387 Views