kali ini kita akan membahas soal berikut nya…
Hitungan dengan Kombinasi Empat Operasi
1. (-4) + 2 × (-3)
2. -8 – 6 × 3
3. 18 – 72 : (-9)
4. 3 × ((-7) – 5)
5. (5 – 19) : (-2)
6. 4 × (-2) + (-14) : 2
7. 36 : (-2)2
8. 10 – 42
9. (-5)2 + (-52)
10. (-45) : 32 + 15
11. 20 + 6 × (7 – 10)
12. 12 – 7 × {8 + (-9)}
13. ¾ + (- 2/3) : 2
14. 7/9 – (-1/3)2
Pembahasan:
1. (-4) + 2 × (-3) = -4 – 6 = -10
2. -8 – 6 × 3 = -8 – 18 = -26
3. 18 – 72 : (-9) = 18 + 8 = 26
4. 3 × ((-7) – 5) = 3 × (-12) = -36
5. (5 – 19) : (-2) = (-14) : (-2) = 7
6. 4 × (-2) + (-14) : 2 = -8 – 7 = -15
7. 36 : (-2)2 = 36 : 4 = 9
8. 10 – 42 = 10 – 16 = -6
9. (-5)2 + (-52) = 25 – 25 = 0
10. (-45) : 32 + 15 = (-45) : 9 + 15 = -5 + 15 = 10
11. 20 + 6 × (7 – 10) = 20 + 6 × (-3) = 20 – 18 = 2
12. 12 – 7 × {8 + (-9)} = 12 – 7 × (-1) = 12 + 7 = 19
13. ¾ + (- 2/3) : 2 = ¾ – 1/3 = 9/12 – 4/12 = 5/12
14. 7/9 – (-1/3)2 = 7/9 – 1/9 = 6/9 = 2/3
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