Old 9 Maths

Simplifying surds. Ex 1.41, q 4, 5

Surds simplifying. Ex 1.41, q 1, 2

Standard Form 2 Percentage 2

Dividing numbers in standard form. Ex 1.39, q 7. Standard form

Negative indices with standard form. Ex 1.40. Calculations with numbers in standard form. Ex 1.39, q 8

Standard form. Ex 1.39

Ratio Rounding: decimal places Ex 1.36, significant figures Ex 1.37. Estimation. Ex 1.38

Inverse proportion. Ex 1.32 Increase and decrease by a given ratio. Ex 1.33, 1.34

Divide in given ratio. Ex 1.30, 1.31

Percentage test. Direct proportion. Ex 1.29