One of the most powerful tools children can have at their fingertips is the ability to double and halve numbers in their heads. These two maths worksheets look at doubling and halving 3-digit numbers.
A good approach to doubling a number such as 174 is:
1. double the hundred (200)
2. then double the 70 (140, making 340 in total)
3. then double the 4 (8, making 348 in total)
It seems that most people would tackle this by starting with the hundreds: the opposite of doing it on paper when you would start with the units. Continue reading “Free Y6 maths worksheets: Revise doubling and halving”