1005323
Maths - Number
- Square, cube, triangle
and prime numbers
- Xsquared = X*X
- Xcubed = X*X*X
- Triangle number = 1+2, 1+2+3 ect.
- Prime number = only two factors
- Xsquared = X*X
- Factor Trees
- Venn Diagram
- HCF = Product of overlapping numbers
- LCM = Product of all numbers
- HCF = Product of overlapping numbers
- Product of prime factors e.g. 2sqaured * 3cubed
- Venn Diagram
- Percent, fraction and decimal
- 23/100 = 0.23 = 23%
- 0.1 rec = 1/9
0.12 rec = 12/99
- 23/100 = 0.23 = 23%
- Fractions
- Adding and subtracting - Find common
denominator, Add/subtract numerators
- Multiplying - Multiply
numerator and
donominator
- Divide - Skip flip and multiply
- Adding and subtracting - Find common
denominator, Add/subtract numerators
- Ratio
- 50 to 1:4 = 10:40
- 50 to 1:4 = 10:40
- Percentage increase/deacrease
- Per inc - 1+per inc
- Per dec - 1-per dec
- Per inc - 1+per inc
- Surds
- Treat like algebra
- 1/root2
- *root2
- root2/2
- root2/2
- *root2
- Treat like algebra
- Bounds
- Upper bound of 21 (2s.f) =21.5
- Lower bound of 21 (2 s.f) = 20.5
- UB = UB+UB UB*UB
UB-LB UB/LB
- LB = LB+LB LB*LB LB-UB LB/UB
- Upper bound of 21 (2s.f) =21.5
- Reciprocals
- Flip fraction upside down
- Flip fraction upside down
- Compound interest
- X.* (IR+1)to the power of years of interest
- X.* (IR+1)to the power of years of interest
- Proportion
- Direct Y=kx
- Indirect Y = k/x
- Direct Y=kx
- Rules of indices
- Negative indices - Power of denominator - reciprocal
- Fraction - root denominator to the power of numerator
- Negative indices - Power of denominator - reciprocal
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