Maths Dept MHS

Information from the Maths Department of Milford haven School. The only angle from which to approach a problem is the TRY-Angle

[MathsRevision @MathsTopTips]

In linear sequences, the number in front of the n is how many you + each time. The other number is the 0th term. #mathstip

[MathsRevision @MathsTopTips]

You can only add/subtract fractions if the bottom is the same. Use equivalent fractions if needed. #mathstip

[MathsRevision @MathsTopTips]

at y-axis- If you'd be walking uphill along the graph, it's positive. If you'd fall downhill, negative. No hill=no correlation #mathstip

[MathsRevision @MathsTopTips]

Positive quadratic graphs look like a smile, negatives look like a frown. #mathstip

[MathsRevision @MathsTopTips]

If you add the digits of number together and the total divides by 9, the original number divides by 9. #mathstip

[MathsRevision @MathsTopTips]

It doesn't matter what order you x in. 3x4=4x3. It does matter what order you divide in 10/5 doesn't equal 5/10 #mathstip

[MathsRevision @MathsTopTips]

mean= add them all up, and divide by how many numbers there are #mathstip

[MathsRevision @MathsTopTips]

median = put them in order and find the middle #mathstip

[MathsRevision @MathsTopTips]

mode = most common / most often #mathstip

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range = biggest value take away smallest value #mathstip

[MathsRevision @MathsTopTips]

One really big or small value will affect your mean - better in that case to use median or mode #mathstip

[MathsRevision @MathsTopTips]

Anything (except 0) to the power of 0 is equal to 1. Anything to the power of 1 is equal to itself. #mathstip

[MathsRevision @MathsTopTips]

In standard form, the number at the start is between 1 and 10 (but not=10), then x 10 to a power. #mathstip

[MathsRevision @MathsTopTips]

Anything to the power of 1/2 means 'the square root of' and to the power of 1/3 means 'the cube root of' #mathstip

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Equilateral=3 equal sides, all angles 60 degrees, 3 lines of symmetry, rotational symmetry order 3 #mathstip

[MathsRevision @MathsTopTips]

Isosceles=2 equal sides, 2 equal angles, one line of symmetry, angles add to 180 degrees #mathstip

[MathsRevision @MathsTopTips]

Equilateral=3 equal sides, all angles 60 degrees, 3 lines of symmetry, rotational symmetry order 3 #mathstip

[MathsRevision @MathsTopTips]

Isosceles=2 equal sides, 2 equal angles, one line of symmetry, angles add to 180 degrees #mathstip

[MathsRevision @MathsTopTips]

at y-axis- If you'd be walking uphill along the graph, it's positive. If you'd fall downhill, negative. No hill=no correlation #mathstip

[MathsRevision @MathsTopTips]

You can only add/subtract fractions if the bottom is the same. Use equivalent fractions if needed. #mathstip