четверг, 10 ноября 2016 г.

Test 1. Subtract negative numbers

 1. Subtract. Write fractions in simplest form.

6 – 12.

 а)  18;        b)  –6;     

 c)  –18;      d)  6.

 2. Subtract. Write fractions in simplest form.

3 – (–4).

 а)  7;      b)  1;     

 c)  7;      d)  –1.

 3. Subtract. Write fractions in simplest form.

–2 – 4.

 а)  –2;      b)  6;     

 c)  2;        d)  –6.

 4. Write an equivalent equation using the additive inverse.

8 – 3.

 а8 + 3;     

 b–8 – 3;     

 c)  8 + (–3);     

 d(–8) + 3.

 5. Write an equivalent equation using the additive inverse.

12 + (–7).

 а12 – 7;     

 b)  12 – 7;     

 c)  12 + 7;     

 d12 + 7.

 6. Write an equivalent equation using the additive inverse.

52 – 13.

 а)  52 + (–13);     

 b–52 – 13;     

 c52 – (–13);     

 d–52 + 13.

 7. Write an equivalent equation using the additive inverse.

67 + (–11).

 а)  –67 + 11;     

 b)  67 + 11;     

 c)  67 – 11;         

 d)  –67 – 11.

 8. Write an equivalent equation using the additive inverse.

30 – 15.

 а30 + 15;          

 b–30 + (–15);     

 c30 – (–15);     

 d)  30 + (–15).

 9. Write an equivalent equation using the additive inverse.

3 + (–56).

 а)  3 + 56;       

 b)  3 – 56;     

 c)  –3 – 56;     

 d)  –3 + 56.

10. Write an equivalent equation using the additive inverse.

87 – 85.

 а)  87 + (–85);        

 b)  87 + 85;     

 c–87 + (–85);     

 d87 – (–85).

11. Write an equivalent equation using the additive inverse.

50 + (–17).

 а)  50 + 17;     

 b)  –50 + 17;     

 c)  50 – 17;     

 d)  –50 – 17.

12. Write an equivalent equation using the additive inverse.

50 – 17.

 а–50 + (–17);     

 b50 – (–17);     

 c50 + 17;             

 d)  50 + (–17).

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