## Welcome to H3 Maths

Blog Support for Growing Mathematicians

## Posts tagged with Order of Operations

### When dividing by a fraction the answer gets bigger?

July13

That’s right. Here is a typical problem that asks you to divide a number by a fraction: Think of it this way – how many halves are there in 30? Answer: Well, there will be 60 halves in 30. So the answer will be 60 + 10 = 70. Note that we do the division […]

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### Brushing up your Order of Operations skills

January3

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### Operations simplified for growing mathematicians!

August18

Get this right and you get Maths! When working in Algebra (like any other work) you need to follow the rules to get it right. Yes, of course there are other ways to handle problems but getting the basics right is the first step! Here’s how I teach it. Think about a BMW (BEMA). This […]

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#### Post Support

10 x 9 x 8 + (7 + 6) x 5 x 4 x (3 + 2) x 1 = 2020

NCEA Level 2 Algebra Problem. Using the information given, the shaded area = 9, that is:
y(y-8) = 9 –> y.y – 8y – 9 =0
–> (y-9)(y+1) = 0, therefore y = 9 (can’t have a distance of – 1 for the other solution for y)
Using the top and bottom of the rectangle,
x = (y-8)(y+2) = (9-8)(9+2) = 11
but, the left side = (x-4) = 11-4 = 7, but rhs = y+? = 9+?, which is greater than the value of the opp. side??
[I think that the left had side was a mistake and should have read (x+4)?]