Across
- 3. to make a expression easier
- 4. used in subtractions
- 8. shows if a number is negative
- 11. same variables to the same power
- 13. used to show the value of an expression
- 15. shows if a number is positive
- 17. plus, minus, divided multiplied
- 19. a figure or symbol denoting a number
Down
- 1. used in addictions
- 2. subtraction, indices, addition, division, Brackets, multiplication
- 5. to substitute a number by a letter
- 6. the number before a letter
- 7. number or decimal on it's own, without any letters
- 9. does not have an equal sign
- 10. has an equal sign
- 12. operation operation that undo each other
- 14. tells you how many times you have to multiply a number by it's self
- 16. the letter after a number
- 18. number or letter in a mathematical expression