Substitution Method
Mathematical Operations of Class 10
You are provided with substitutes for various mathematical symbols. This is called the Substitution method.
This section deals with questions on simple mathematical operations namely + and - along with others namely <, =, >, etc. These operations are coded using artificial symbols. The candidate has to make substitution of real signs and then by using DMAS formula, solve the equation.
While attempting to solve a mathematical expression, proceed according to the rule BODMAS -that is, Brackets, Of, Division, Multiplication, Addition, Subtraction.