Expression Blocks

We can find expression blocks in the Operators category in EdScratch.

Practice

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].