Across
- 4. 2x+1=9 (type of equation)
- 8. average
- 9. positive and negative numbers
- 10. the middle number
- 12. 5+3=3+5
- 14. two equal expressions
Down
- 1. positive numbers (no fractions or decimals)
- 2. 2(3+5)=6+10
- 3. x+3=7 (type of equation)
- 5. two unequal expressions
- 6. 2+(3+5)=(2+3)+5
- 7. greatest minus smallest
- 11. 2x1=2
- 13. most frequent number