Correct Answers:
A. Find the next two terms. Drag and drop the correct term from the box into the space provided.
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B. Choose the two expressions that are equivalent in each item.
| 10. |
2 + 5
4 + 3
7 + 1
6 + 0
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| 11. |
11 − 3
15 − 6
18 − 10
9 − 2
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| 12. |
8 + 8
10 + 7
9 + 8
6 + 12
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| 13. |
16 − 8
20 − 11
15 − 5
18 − 9
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C. Tell which among the choices is equivalent to the given expression. Choose the
correct answer.
| 14. | 9 + 1 | |
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8 + 3
10 + 0
5 + 4
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| 15. | 11 + 2 | |
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6 + 7
10 + 1
7 + 4
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| 16. | 4 + 8 | |
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8 + 5
9 + 3
5 + 6
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| 17. | 13 − 2 | |
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16 − 7
15 − 1
17 − 6
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| 18. | 19 − 7 | |
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20 − 8
19 − 4
15 − 5
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| 19. | 20 − 16 | |
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16 − 6
15 − 11
14 − 2
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D. Solve for n in each number sentence. Fill in the blank with the value of n.
| 20. | n + 8 = 17 n = | |
| 21. | n − 12 = 6 n = | |
| 22. | 14 + n = 20 n = | |
| 23. | 11 = n + 6 n = | |
| 24. | 18 − n = 10 n = | |
| 25. | 12 = n − 9 n = | |
| 26. | 19 = 8 + n n = | |