Question: Only gotta do 21-30 Find the sums using the rules for algebraic addition. 19. -3+7 20. 5 + (-3) 21. -7 + (-2) + (-3)

Only gotta do 21-30

Find the sums using the rules for algebraic addition. 19. -3+7 20. 5 + (-3) 21. -7 + (-2) + (-3) +5 22. -3+9 23. 10 + (-12) 24. 5 + 12 + (-3) + 6 25. 9 + (-10) 26. 8 + (-5) 27. 5 + (-6) + (-8) + 3+ (-7) 28. 9 - 10 29. 8- 5 30. 5-6-8+3-7 O

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