Kelly subtracted 2.3 from 20 and got 17.7. Explain why this answer is reasonable
To explain why Kelly's answer of 17.7 is reasonable, we can perform a simple calculation.
First, let's start with the initial number of 20. We know that Kelly subtracted 2.3 from 20, so we can write this as:
20 - 2.3
When we subtract 2.3 from 20, we are essentially reducing the value of 20.
If we perform the calculation, we get:
20 - 2.3 = 17.7
So, Kelly's answer of 17.7 is reasonable because it is the result of subtracting 2.3 from 20. This calculation demonstrates that the reduction of 2.3 from 20 yields a result of 17.7.