The formula question example shows how to ask students ridiculously easy questions like "What is [x] + 5?"

Or "Calculate the weight of [x] blue whales."

For those of us who don't teach elementary school, this is not useful.

I want give my students a random number between, say 100,000 and 250,000. And I do NOT want a random number of 197,476. I want to generate [x] between 1 and 10, with 1 decimal place, and then multiply that times 15,000, and add the product to 100,000, to get numbers like 241,500, not 197,476.

Why on earth am I not allowed to do something like the following.

Annual sales are [x*15000+100000]?