

The percentage ratio of two numbers.

Solving text problems

Circle.

Circle.

Circular sector

Bar and pie charts

Positive and negative numbers.

Coordinate line

Opposite numbers

The module of a number

Whole numbers.

Comparison of rational numbers

Adding negative numbers

Adding numbers with different signs

Properties of addition of rational numbers

Subtraction of rational numbers

Subtraction of rational numbers (part 2)

Multiplication of rational numbers

Commutative and conjunctive properties of multiplication.

Distributive property of multiplication

Application of multiplication properties to solving exercises

Division of rational numbers

Solutions of exercises for all actions with rational numbers.

Solutions of exercises for all actions with rational numbers.

Similar terms and their summation

Opening brackets

Opening parentheses and reduction of similar terms.

Opening parentheses and reduction of similar terms.

Solving exercises

Equation.

Equation.

Equation.

Solving word problems using equations.

Solving word problems using equations.

Solving word problems using equations.

Perpendicular lines, their construction
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