1			2
3
													4
5				6												7
	8			9
															10				11		12
	13					14											15
										16
			17
18
19

Across 1. A STRATEGY USED FOR ANY OPERATION. 5. THIS PROPERTY SAYS IT DOESN'T MATTER WHICH ORDER THE NUMBERS ARE IN. 9. THE INVERSE OPERATION OF DIVISION. 13. THESE TYPE OF FRACTIONS ARE EQUAL TO EACH OTHER. 16. THIS PROPERTY SAYS YOU CAN BREAK APART ONE OF THE NUMBERS TO SOLVE. 17. THE OPERATION YOU DO WHEN YOU SEE A LARGE NUMBER IN A PROBLEM. 19. YOU CAN ESTIMATE IF YOU DO THIS TO THE NEAREST TEN.

Down 2. A STRATEGY USED TO COMPARE AND ORDER FRACTIONS. 3. A STRATEGY USED FOR MULTIPLICATION. 4. AN EQUATION IN WHICH YOU MAY HAVE TO BORROW. 6. THIS PROPERTY SAYS IT DOESN'T MATTER HOW YOU GROUP NUMBERS. 7. THIS PROPERTY SAYS TO SOLVE A SMALLER PROBLEM AND THEN ADD THE ZERO TO THE ANSWER. 8. ADDING ALL THE SIDES. 10. ANOTHER NAME FOR EQUATION, OPERATION, OR NUMBER SENTENCE. 11. CAN SHOW WHOLE NUMBERS AND PARTS OF NUMBERS. 12. THE TIME BETWEEN TWO TIMES. 14. AN OPERATION IN WHICH YOU MAY HAVE TO CARRY. 15. A STRATEGY USED FOR DIVISION. 18. THE LENGTH AND WIDTH OF A SHAPE.