2.1.1 Addition and Subtraction Equations − Worksheet
Example 1:
Solve each equation. Check your answer. 1. s − 5 = 3 2. 17 = w − 4
3. k − 8 = − 7
3 8
1 8
4. x − 3.9 = 12.4
5. 8.4 = y − 4.6
6.
= − t
Example 2:
Solve each equation. Check your answer. 7. t + 5 = − 25 8. 9 = s + 9
9. 42 = m + 36
11. + = b 2 3
10. 2.8 = z + 0.5
12. n + 1.8 = 3
2
13. − 10 + d = 7
14. 20 = − 12 + v
15. −46 + q = 5
18. − + = p 5 6
17. − + = c 2 3
2 3
16. 2.8 = − 0.9 + y
2
Example 3: 19. In 1673, the Hope diamond was reduced from is original weight by about 45 carats, resulting in a diamond weighing about 67 carats. Write and solve an equation to find how many carats the original diamond weighed. Show that your answer is reasonable.
77
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