Squares of numbers Animation Play

Squaring large numbers Animation Play

Substituting into a formula connected with numbers Whiteboard exercise Play

Substituting into formulas connected with numbers Student activity Play

Substituting into the formulas Class activity Play

Substituting into the formulas Whiteboard presentation Play

Subtracting natural numbers Whiteboard exercise Play

Subtracting natural numbers using the written method Student activity Play

Subtracting negative numbers Student activity Play

Subtracting negative numbers Whiteboard exercise Play

Subtracting numbers in standard index form Animation Play

Subtracting using the written method Animation Play

Summing natural numbers Animation Play

Surds Class activity Play

The arithmetic mean of two numbers Animation Play

The bike trip Animation Play

The correct position of the signs Whiteboard exercise Play

The correct result of the division Whiteboard exercise Play

The cost of 1 kg of apples Animation Play

The cost of a 3-day mountain trip Whiteboard exercise Play

The debt is decreasing Whiteboard exercise Play

The debt is increasing. The debt is decreasing Student activity Play

The distribution of the rational numbers over the number line Animation Play

The division of a triangle Student activity Play

The division of the triangle Whiteboard exercise Play