What is the inverse operation of squaring a number?

Identify the first five positive integers that are perfect squares.

The square root of a number lies between 4 and 5. What are the two consecutive perfect squares that this number lies between?

Find the first approximation of 20​ by identifying the two closest perfect squares and testing the decimal values.

Explain why 4.1 is the first approximation of 17​.

Using the division method, find the value of 676​.

Using the division method, calculate the value of 8​ accurate to one decimal place.

Calculate 3.61​ using the division method.

Find the value of 2737​ accurate to two decimal places.

Calculate 0.0064​.

The area of a square-shaped plot of land is 1225 cm². What is the length of one of its sides?

The surface area of a cube is 1350 cm². What is the length of one of its sides?

A square courtyard is completely covered by 324 square-shaped tiles, each with an area of 900 cm². Find the length of a side of the courtyard in metres.

The area of a square is equal to the area of a rectangle with a length of 27 cm and a breadth of 12 cm. Find the length of a side of the square.

An isosceles right-angled triangle has a hypotenuse of 12 cm. Find the length of one of the other sides, correct to two decimal places.