A. identify the property which applies in each case

________1. 5 + 14 = 14 + 5
________2. 670 + 0 = 670
________3. 45 × 321 = 321 × 46
________4. (7 + 12) + 23
________5. 43 × (12 × 51) = (43 × 12) × 51
________6. 0 × 1245 = 0
________7. (115 + 25) + 10 = 115 + (25 + 10)
________8. 563 + 210 = 210 + 563
________9. 1 × 47 = 47
________10. 780 + (14 + 70) = (780 + 70) + 14
________11. 19 + 0 = 19
________12. 4 + 6 = 6 + 4
________13. (12 + 35) + (24 + 47) = (24 + 27) + (12 + 35)
________14. 12 × (2 × 94) × 17 = (12 × 2) (94 × 17)
________15. 2 × (3 + 4) = (2 × 3) + (2 × 4)


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