Across
- 3. order changes ex) 2+3=3+2
- 5. you get what you started with (mirror image) ex) 2+0=2
- 6. parentheses changes ex) 2+(3+4)=(2+3)+4
Down
- 1. two terms
- 2. both multiplication and addition in the same example ex: 2(4x+2)= 8x+4
- 4. one term
- 5. cancels out ex) 2+-2=0