Where I do it
At school and at home
🧮
Maths
Solved before most people finish reading it
Quick Facts
Fastest skill
Speed-solving
Starts with
Numbers
Big idea from India
The number zero
Learn the Basics
- Learn your times tables, because they make almost everything faster.
- Number bonds to 10 and 20 help you add and subtract in your head.
- To multiply by 9, multiply by 10 and subtract the number. For example 9 × 7 = 70 − 7 = 63.
- Double and halve: 16 × 5 is the same as 8 × 10.
- Always check your answer a second way.
Fun Facts
- The idea of zero as a number came from India.
- A googol is 1 followed by 100 zeros.
- Prime numbers like 2, 3, 5 and 7 can only be divided by 1 and themselves.
How I Know This
- I do maths at school and at home.
- I practise speed-solving problems and solve them before most people finish reading them.
- I like solving tricky number puzzles ahead of schedule.