Question

What 2 numbers are √99between ?

Answer 1

We know that:

`\begin{gathered} √(1)=1 \\ √(4)=2 \\ √(9)=3 \\ √(16)=4 \\ √(25)=5 \\ √(36)=6 \\ √(49)=7 \\ √(64)=8 \\ √(81)=9 \\ √(100)=10 \\ √(121)=11 \end{gathered}`

Now, we can see that since 99 is between 81 and 100, the square root of 99 is between 9 and 10.

`\begin{gathered} √(81)=9 \\ √(99)=? \\ √(100)=10 \end{gathered}`

Answer: between 9 and 10