Richmond College, Galle 9 ශ්‍රේණිය ගණිතය 1 වාර පරීක්ෂණය 2019

General term (Sinhala) or common difference (English) of an odd-number pattern

Twentieth term from a general term

Convert a decimal number to binary

Add two binary numbers

Subtract two binary numbers

Whole amount from the value of one fifth

Price to mark for a given profit percentage

Selling price after a percentage discount

Area expression for a rectangle with length related to breadth

Fraction of a sum of fractions

Factorise a four-term quadratic by grouping

Factorise a difference of two squares

Fraction of a kilogram in grams

Substitute a negative fraction into a linear expression

Angles of a parallelogram from one given angle

Angles in two triangles between parallel lines

Expand a product of two binomials

Commission as a percentage of a sale price

Capacity in millilitres of a cuboid container

Number between 1 and 50 that is square and triangular

Simplify expressions with mixed numbers using 'of' and multiplication

Successive fractions of money shared out; find the whole amount

Dot pattern general term; terms and term number from a decreasing pattern

Capacity of a small cuboid in millilitres

Tank capacity in litres, partial filling, and water depth in another tank

Angles with parallel lines; angles at a point with three lines

Angles in a triangle on straight lines; show two lines parallel

Substitute negative and positive values into expressions

Factorise a trinomial, a four-term expression, and evaluate by difference of squares

Cost price from a profit percentage; compare two shop discounts

Area expressions for a rectangle with a piece removed; expand binomial products