We can find expression blocks in the Operators category in EdScratch.
Try resolving the following expressions. First, write out what each expression means, then resolve it to either true or false.
For these questions, if A = 2 and B = 4, what does each of the following expressions mean (in other words, what question is it asking) and what does each resolve to (true or false)?
1. (A*2) = B Meaning: Is 2*2 the same as 4?
Resolves to: True
2. A >= B Meaning: ________________________________________
Resolves to: __________
3. (A+A) ≠ B Meaning: ________________________________________
Resolves to: __________
4. (A-1) < (B-3) Meaning: ________________________________________
Resolves to: __________
Activity from [1 p. 188].