1		2		3						4
	5
			6
	7
					8
																					9
10
11
	12
			13
14
			15

Across 5. The property that states that two or more numbers can be added(or multiplied) in any order without changing the sum (product) 6. An estimate that is greater than the exact answer 7. A sequence in which the terms change by the same amount each time 8. To find the value of a numerical or algebraic expression 10. The property that states that for three or more numbers, their sums or product is always the same, regardless of their grouping 11. An expression that contains only numbers and operations 13. A rule for evaluating expressions; first perform the operations in parenthesis, then compute the powers and roots, then perform all multiplication and division from left to right, and then perform all addition and subtraction from left to right 14. Numbers that are close to the given numbers that make estimation or mental calculations easier 15. When a number is written with a base and an exponent

Down 1. When a number is raised to a power, the number that is used as a factor 2. The property that states if you multiply a sum by a number, you will get the same result if you multiply each addend by that number and then add the products 3. An element or number in a sequence 4. An ordered list of numbers 9. an estimation that is less than the exact number 12. The number that indicates how many times the base is to be used as a factor