Question

Explain how you know that the square root of 30 is between 5 and 6

Answer 1

It’s between 5 and 6 mostly because 5 x 6 = 30.

Answer 2

We know that 6 squared equals 36, and we know that 5 squared is equal to 25. SO we know that 30 must lie somewhere between those two numbers. It is greater than 5, but less than 6 because 25 is less than 30 and 36 is greater than 30.