Below are the elementary topics available for the category "Algebra" at ** Free Math Games**.

These free math topics with audio offer a complete set of basic Algebra topics for elementary pupils (Kindergarten to 5th grade, ages 5 to 11). The Algebra category is divided into sub-categories such as "Equations", " Formulae: perimeter", " Formulae: area", etc. Each sub-category has multiple topics with between 6 and 10 question and answer pairs for the lessons, plus additional question answer pairs for the games and tests.

For each question/answer pair in a topic you get the question as picture, equation or text, the spoken question read by a robot, and an answer as both number or text and as audio. For most topics there are also 3 wrong answers prepared for each question.

2 + *b* = 5

Algebra equations: Addition

Solve these one-step addition equations to find the value of b in each equation

2 + *b* = 5

One step addition equations

Solve the one-step addition equation to find the value of the unknown variable

One step subtraction equations

Solve the one-step subtraction equation to find the value of the letter

2 x *m* = 8

One step multiplication equations

Solve the multiplication equation to find the value of the letter

4 ÷ *n* = 2

One step division equations

Solve the one-step division equation to find the value of the letter

12 + *b* = -5

Algebra : addition equations

Solve the one-step addition equations to find the value of the letter

Algebra : subtraction equations

Solve the one-step subtraction equations to find the value of the letter

2 x *m* = 50

Algebra : multiplication equations

Solve the one step multiplication equations to find the value of the letter

81 ÷ *x* = 9

Algebra : division equations

Solve the one-step division equations to find the value of the letter

P = 4 x L

Perimeter of a square

Use the formula perimeter P = 4 x length to work out the perimeter of each square

P = 2(L+W)

Perimeter of a rectangle

Use the formula perimeter P = 2 x (length + width) to calculate the perimeter of rectangles

P = 3 x L

Perimeter of a triangle

Use the formula P = 3 x length to work out the perimeter of these equilateral triangles

A = L x L

Area of a square

Calculate the area of the square using the formula area A = length x length

A = L x W

Area of a rectangle

Calculate the area of rectangles using the formula area A = length L x width W

Angles on a straight line

Which of the given equations could be used to find the missing angle?

11 + *x* = -5

One step addition equations

Solve the one-step addition equation to find the value of X

One step subtraction equations

Solve the one-step subtraction equation to find the value of x

2 x *x* = 100

One step multiplication equations

Solve the multiplication equation to find the value of x

-20 / *x* = -5

One step division equations

Solve the one-step division equation to find the value of x

P = 4 x L

Perimeter of squares

Use the formula perimeter P = 4 x length to work out the perimeter of each square

P = 2(L+W)

Perimeter of rectangles

Use the formula perimeter P = 2 x (length + width) to calculate the perimeter of rectangles

P = 3L

Perimeter of equilateral triangles

Use the formula P = 3 x length to work out the perimeter of these equilateral triangles

Perimeter of compound shapes

Use algebra to express the total perimeter of compound shapes in terms of x

A = L x L

Area of squares

Calculate the area of squares using the formula area A = length L times L

A = L x W

Area of rectangles

Calculate the area of rectangles using the formula area A = length L x width W

Angles on straight line: missing angle

Find the missing angle using the angles on a straight line rule

Angles around point: missing angle

Find the missing angle using the angles around a point rule

Angles in triangle: missing angle problems

Find the missing angle using the rule that angles in a triangle sum to 180 degrees

Angles in a quadrilateral

Find the missing angle using the rule that angles in a quadrilateral sum to 360 degrees

Angles on a straight line: form an equation

Express the angles on a straight line missing number problem algebraically by forming an equation

Angles around a point: form an equation

Express the angles around a point missing number problem algebraically by forming an equation

Angles in a triangle: form equation

Express the angles in a triangle sum to 180 missing number problem algebraically by forming an equation

Composite shapes: missing lengths

Identify the missing length X for each of these 2-dimensional composite shapes

Coordinates of point P

Using the graph identify the x or y coordinate of the point labelled P

3x+5x+20

Collect up like terms

Use addition and subtraction to collect up like terms

3x(4x+1)

Expand a simple bracket

Use multiplication to expand a bracket then simplify the expression

(x+2)(x+1)

Multiply and simplify

Use multiplication to expand and then collect like terms

2*n* + 1

Generate linear sequences

Identify the sequence that is generated by the given formula

1, 3, 5, ..

Term to term rule

Identify the correct term-to-term rule for the sequence

2, 4, 6, ..

Position to term rule

Identify the correct position-to-term rule for the given sequences

In addition to the Algebra topics shown above, the elementary section of Free Math Games has 17 other top level categories of topics to choose from. Each top level category offers a full breadth of topics to cover the elementary curriculum. Use these topics to reinforce key math concepts in a fun and engaging way that will keep your pupils enthused and energised with the math they are learning. The top level categories available are:

- Counting
- Comparing numbers
- Pattern
- Place value
- Addition
- Subtraction
- Add + Subtract
- Multiplication
- Division
- Multiply + Divide
- Fractions
- Decimals
- Percentages
- Ratio + proportion
- Measurements
- Shapes
- Position + Direction
- Statistics
- Algebra

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