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Across 3. prefix in metric system that means 0.001 7. get the same number you started with 10. a method of getting close to the answer without actually computing it 14. multiplying and dividing numbers with different signs results in this sign 16. two numbers that are the same distance from 0 on the number line, but in opposite directions 18. base unit of mass in metric system 19. Property in which the parenthesis move 22. the difference between the greatest and the least values 23. anything times zero equals zero 24. identity number in multiplication 25. the set of positive whole numbers, their opposites, and zero 26. mathematical operations must be done in a particular ___

Down 1. base unit of capacity in metric system 2. numbers that are easy to compute mentally 4. base unit of length in metric system 5. property in which the numbers move 6. prefix in metric system that means 0.001 8. multiplying and dividing numbers with the same sign results in this sign 9. a data item that is much higher or much lower than the other items in a set of data 11. prefix in metric system that means 1000 12. two numbers whith a sum of 0 13. the middle value when the data are arranged in numerical order 15. the distance of a number from zero on a number line 17. identity number in addition 19. put the decimal points in a line 20. the sum of the data divided by the number of data items 21. the item that occurs the most in a set of data