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Orange Poster, Question 1

24 x 8 + 48 = ?

Answer

24 x 8 + 48 = 240

I hope you tried these in your head and not with that calculator on your phone!

You might notice that 48 = 2x24 and therefore 24 x 8 + 48 = 24 x 10 , which is much easier.

One thing to remember in sums of this type, where there is addition and multiplication is that you do the multiplication first and then the addition. We can indicate this with brackets : (24 x8) + 48 and the rule is to do the calculation in brackets first.

If we want the addition done first we have to use brackets to show that –

24 x (8 + 48) would become 24 x 56 =1344 and this is a completely different answer.