1. Calcule: ∣ − 7 ∣
2. Qual é o valor de: ∣ 0 ∣
3. Resolva: ∣ − 15 ∣ + ∣ − 5 ∣
4. Calcule o valor de: ∣−45+20∣+∣15−40∣
5. Qual o valor de: ∣−8×(−3)∣−∣15−25∣
6. Calcule: ∣−10∣−∣−5∣+∣−15+10∣
7. Qual o resultado de: ∣3−7∣+∣−4+2∣
8. Calcule: ∣−7+3∣+∣2−8∣+∣−1+1∣
9. Calcule: ∣−12+7∣+∣−3×(−4)∣−∣6−15∣
10. Resolva: ∣−20+5∣+∣−10−5∣+∣−(7+2)∣