Read from right to left, and write down the number whenever she reads one, write down + for “more than” and – for less than, and = when she reads “is”.

Taking your 2 examples,

What is 20 less than 385?

Reading from right to left, she should read 385 first.

So write “**385**“

Then read “less than” and write “-“. Now she should have **385 –**

Next read 20 and write that down, and she would have **385 – 20**

Finally, “is” so write down “=” and she would have **385 – 20 = ______**

Example 2

365 is 20 less than _____?

The blank space represents a number, so write it down as it is -> **_____**

“less than” -> **______ –**

“20” -> **_____ – 20**

“is” -> **_____ – 20 =**

“365” -> **_____ – 20 = 365**

Hope this helps. 🙂