Perform the indicated operations.

1. —4 + 5 =
2. —5 + (–5) =
3. —10 + (–3) =
4. 15 + (–2) =
5. —12 + 15 =
6. —3 – (–2) =
7. 4 – (–6) =
8. 8 – 15 =
9. —5 – 5 =
10. —4 – (–4) =
11. (–8) (–6) =
12. (3) (5) (–2) =
13. (–100) (10) =
14. (–2) (–2) (–2) (–2) (–2) =
15. (–3) (2) (–1) (4) (5) =
16. (–35) ÷ (–5) =
17. 40 ÷ (–8) =
18. –200 ÷ 20 =
19. 48 ÷ –6 =
20. –625 ÷ 25 =


Skin Builder 3:
1.) A vendor gained ₱50 on the first day, lost ₱28 on the second day, and gained ₱49 on the third day. How much profit did the vendor gain in 3 days?

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Skin Builder 5:
1.) You worked in a factory and earned ₱525 a day. How much is your earning in 15 days?

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