Vidyarathna University College, Horana (school paper, via govdoc.lk) 10 ශ්‍රේණිය ගණිතය 1 වාර පරීක්ෂණය 2022

Profit percentage from cost and selling price

Subtract algebraic fractions with numeric denominators

Shade complement-intersection region on a Venn diagram

Solve a linear equation with a fraction

First approximation of a square root

Base angles of isosceles triangle formed by radii

Arc length of a sector

Factorise by taking out a common factor

Identify congruent triangles and the condition

Fill gaps in the square of a binomial

Total repayment on a simple-interest loan

LCM of three algebraic terms

Unknown angle with a right angle on a straight line

Capacity in litres of a cube

Rectangle perimeter from side ratio and one side

Workers needed to finish a job sooner

Angles in a rhombus from one given angle

Expand a product of two binomials

Multiply a mixed number by a fraction

Conclusion from equal segments using an axiom

Quarterly rates from annual rates

Area of a semicircle

Distance from speed and time

Read and plot points on the Cartesian plane

Construction sketch for the equidistant locus of two points

Fractions of a salary spent and saved; find the salary

Pie chart angles and counts; recompute after a change

Area of a composite plot, tank volume and cost

Customs duty and profit per kilogram

Man-days and extra workers to finish sooner

Sample space and probability of events and complement

Linear graph: table, draw, gradient, intercept, parallel line

Form and solve simultaneous equations from prices

Expand a binomial product and a binomial square

Rates and rate percentage; simple interest over years

Factorise common-factor, trinomial and difference-of-squares forms

Square a number via a binomial; expand and simplify

Modal and median class, mean from grouped data

Scale diagram of three points from bearings

AP word problem: terms, difference, total, days

Construct a right triangle, bisector locus and circle

Prove two triangles congruent in an isosceles triangle

Find triangle angles from sum and difference conditions

Prove the perpendicular from centre bisects a chord

Show sector perimeter and area formulas in terms of radius

Read set counts and complement from a Venn diagram

Sample space and probabilities for drawing a lettered card