Search Results For “doubling and halving to 20”

You can get a multiple of a whole number by multiplying it by another whole number. A factor of a number will divide into the number exactly, without a remainder.

A whole number which only has factors of 1 and itself is known as a prime number.

Revising division, including what happens when you divide by one and if it is possible to divide by zero.

Using co-ordinates in the first quadrant to make shapes and solve problems.

Practice at estimating and measuring angles. Remember, angle is a measure of turn.

More on measuring angles and calculating angles from given information.

Using a ruler to measure to the nearest centimetre or millimetre. (Please note that printers will print the page at different sizes according to printer settings.)

Looking at maps to find distances in kilometres.

Finding the perimeter of rectangles and using the formula: P = 2l +2w.

Finding the perimeter of regular polygons such as hexagons and octagons.

Years, months, days, hours, minutes and seconds are all found here!

Converting 24 hour clock times to 12 hour and vice versa.