Royal College, Colombo 07 9 ශ්‍රේණිය ගණිතය 1 වාර පරීක්ෂණය 2025

First two terms from a linear general term

Factor out a common factor

Convert a decimal number to binary

Fraction expression with 'of' before subtraction

Substitute negative values into an expression

General term of an arithmetic pattern

Factorise a perfect square trinomial

Angles on a straight line with algebraic angles

Convert a binary number to decimal

Angle in a zigzag of parallel line pairs

Expand a product of two binomials

Price paid from discount amount and rate

Relationship of segments from a midpoint

Loss amount from selling price and loss percentage

Solve a two-step linear equation

Position of a given term in an arithmetic pattern

Area of a rectangle with binomial sides

Name complementary and supplementary adjacent angle pairs

Profit percentage from selling price and profit

Remaining fraction after removing a part and selling a fraction

Profit and loss: selling prices, profit or loss, commission, discount and owner's income

Rectangle and square areas as algebraic expressions; substitution of fractions

Mixed number, shaded fraction of a fraction, simplification; land use fractions

Decreasing pattern: multiples, general term, a term, term position; binary sum and difference

Construct a triangle from three sides; measure angle; circle; equilateral triangle

Factorise with common factor, trinomials, difference of squares; evaluate by factors

Rectangle with a square removed: breadth, area, shaded area expressions; verify an identity