North Central Province 9 ශ්‍රේණිය ගණිතය 3 වාර පරීක්ෂණය 2022

Common difference of a decreasing number pattern

Subtract two base-two numbers

Fraction of a mass in kilograms

Profit percentage from cost and selling price

Solve a linear equation containing a fraction

Use an axiom to show two segments on a line are equal

Unknown angle from a transversal across two parallel lines

Water volume in litres in a cuboid from base area and height

Time to drain a tank at a constant rate

Evaluate an expression with a zero index and a square

Add two numbers in scientific notation, give ordinary form

Exterior angle of a triangle equals sum of remote interior angles

Solve a linear inequality and show it on a number line

Reverse bearing between two points

Unknown angle of a quadrilateral from the angle sum

Arc length of a semicircular flower bed

Factorise a difference of two squares

Area of a parallelogram from base and perpendicular height

Decide whether a regular polygon can have a given exterior angle

Daily sugar sales: frequency table, range, mode, median, mean, profit

Table and graph of a linear function, second line, gradient and intercept

Venn diagram from set data, complement, equal sets; simple probability

Factorise a trinomial; simultaneous equations; equation with fractions

Composite figure: Pythagoras, semicircle area, total area and painting cost

Construct a triangle, angle and perpendicular bisectors, and a circle