Which is 9. So 9 is a square number. Here are some other examples of square numbers. Can you see how all these numbers can be arranged into a square? Which is 64. So 64 is a cube number. Here are some ...

Struggling with mental math? Students from class 6 to 10 now have a clever way to simplify tricky multiplication problems. The “doubling square” method turns large or complex calculations into quick, ...