STANDARD FORM It’s a number between 1 and 10 times by a power of 10. e.g. 450 is 4.5 x 10 2 Use the exp button on the calculator

POWERS Add the powers when multiplying Take away when dividing Power of 0 is 1 Fraction powers: ½ is square root, 1/3 is cube root Negative powers are 1 over the positive power

FRACTIONS Fraction of – divide by the bottom, times by the top. Add, subtract – make the bottoms the same Divide – turn the 2 nd fraction upside down and times

COORDINATES For 3d coordinates follow the axes as x,y,z To find midpoints add the x’s then halve. Do the same for the y’s and z’s.

ANGLES Parallel lines- the FUZ is the CIA Bearings measure clockwise from North

LCM and HCF LCM is a multiple, so is bigger than the start numbers HCF is a factor, so is smaller than the start numbers

AREA Rectangle is length x width Triangle is height x base / 2 Trapezium is (add parallel sides) x height /2 Compound shapes – split into easier shapes then add together

VOLUME Prisms – Area of front x length

EXPANDING BRACKETS Two brackets together – eyebrows and smiley face are 4 multiplies

FACTORISING BRACKETS Pick the x’s to times together Pick the numbers to times to the question Check the smiley face to see if the x term is right

STRAIGHT LINES Form is y=mx+c To plot the line, take 3 x values and find out the y values that go with them

CIRCLE ANGLES The angle between a tangent and a radius is 90 o