Across
- 1. number / is a real number that is less than zero
- 3. / making a number simpler but keeping its value close
- 5. / "to estimate."
- 7. / is a mathematical phrase that can contain ordinary numbers, variables (like x or y) and operation symbols
- 10. / to find something close to the correct answer
- 12. Line / is a straight line with a "zero" point in the middle, with positive and negative numbers on opposite size
- 13. Math / make calculations in their minds
Down
- 2. / the process of equating one thing with another
- 4. / are used in mathematical expressions to denote modifications to normal order of operations
- 5. / to change (something) so that it fits, corresponds, or conforms; adapt; accommodate
- 6. number / is a number that is bigger than zero
- 8. Notation / writing a number to show the value of each digit
- 9. / solutions therefore need not be closed-form
- 11. expression / is a mathematical phrase involving only numbers and one or more operational symbols