Three worksheets on solving simultaneous equations using the methods of substitution and elimination. The exercise require to solve simple and more complicated pairs of equations simultaneously and use simultaneous equations to solve word problems. Detailed solutions are included.

Three worksheets on solving simultaneous equations using their graphs. Detailed solutions are included.

Three worksheets on determining whether two lines are parallel, intersect or coincide and examining if they are perpendicular. Detailed solutions are included.

A presentation on converting recurring decimals to fractions and 3 worksheets with detailed solutions. The first worksheets is on recurring decimals with repeating digits only, the second worksheet is on recurring decimals with repeating and non-repeating digits and the third worksheet includes both cases of recurring decimals. detailed solutions are included.

Three worksheets for Year 9 students on the following topics: Density Speed Unit cost Detailed solutions are included.

Three worksheets for Year 9 students on the following topics: Metric units for area and volume Metric units for capacity Detailed solutions are included.

Four worksheets for Year 9 students on the following topics: Mental calculations Powers of 10 Rounding appropriately Standard form Detailed solutions are included.

Five worksheets for Year 9 students on the following topics: Algebra Expanding brackets Expanding brackets and factorising Expanding the product of two brackets Factorising expressions containing powers Detailed solutions are included.

Five worksheets for Year 9 students on the following topics: Fractions and mixed numbers Adding and subtracting fractions and mixed numbers Multiplying fractions Multiplying mixed numbers Dividing fractions and mixed numbers Detailed solutions are included.

Eight worksheets for Year 9 students on the following topics: Calculating the original value Percentage increases and decreases Simple interest Equations with brackets Equations with fractions Factorising algebraic expressions Multiplying out brackets Rearranging formulae Detailed solutions are included.

A collection of three worksheets: An introductory worksheet on the trigonometric ratios sine, cosine and tangent. The exercises require to evaluate these ratios for an angle in a given triangle, to identify the trigonometric ratio that corresponds to a given ratio for a given triangle, to use a calculator to evaluate the trigonometric ratio of a given angle or the angle given one of its trigonometric ratios and to associate the sine or cosine of an angle to the cosine or sine of its complementary angle. Two worksheets on evaluating missing angles or sides in a given right-angled triangle. Detailed solutions are included.

A collection of 8 worksheets on percentages. The following are included: Percentages, fractions and decimals Expressing one quantity as a percentage of another Percentage Increase-Decrease Percentage change Simple interest Compound interest Reverse percentage Percentage (over 100) of a number Detailed solutions are included.

Three worksheets on trigonometric ratios sine, cosine and tangent. The exercises require to evaluate these numbers for an angle in a given triangle, to identify the trigonometric number that corresponds to a given ratio for a given triangle, to use a calculator to evaluate the trigonometric number of a given angle or the angle given one of its trigonometric numbers and to associate the sine or cosine of an angle to the cosine or sine of its complementary angle. In addition the exercises in the third worksheet require to use the unit circle to find the sign and the value of the trigonometric ratios of given angles.Detailed solutions are included.