Contoh soal 1
38 × (-26) – (-1.120) : 32 + 125 = ....
Pembahasan :
38 × (-26) – (-1.120) : 32 + 125 = ....
38 × (-26) – {(-1.120) : 32} + 125 = (-988) - (-35) + 125
= (-988) + 35 + 125
= -953 + 125
= -828
Contoh soal 2
896 : (-28) × 26 + (-213) – 372 = ....
Pembahasan :
896 : (-28) × 26 + (-213) – 372 = ....
{896 : (-28)) × 26 + {(-213) – 372} = (-32) x 26 + (-585)
= (-832) + (-585)
= (-1.417)
Contoh soal 3
138 + (-38) × 45 : (-15) – 258 = ....
Pembahasan :
138 + (-38) × 45 : (-15) – 258 = ....
138 + ((-38) × 45} : (-15) – 258 = 138 + {(-1.710) : (-15)} - 258
= 138 + 114 - 258
= (-6)
Contoh soal 4
625 – (-1.768) : 34 × 17 + (-180) = ....
Pembahasan :
625 – (-1.768) : 34 × 17 + (-180) = ....
625 – {(-1.768) : 34} × 17 + (-180) = 625 - {(-52) x 17} + (-180)
= 625 - (-884) + (-180)
= 625 + 884 + (-180)
= 1.509 + (-180)
= 1.329
Contoh soal 5
(-68) × 35 + 624 : (-13) – (-732) = ....
Pembahasan :
(-68) × 35 + 624 : (-13) – (-732) = ....
{(-68) × 35} + {624 : (-13)} – (-732) = (-2.380) + (-48) – (-732)
= (-2.428) + 732
= (-1.696)
Contoh soal 6
18 × {(-196) – (-924)} : 28 + 128 = ....
Pembahasan :
Pengurangan ada tanda kurung maka harus didahulukan
18 × {(-196) – (-924)} : 28 + 128 = 18 × {(-196) + 924} : 28 + 128
= {18 x 728} : 28 + 128
= {13.104 : 28} + 128
= 468 + 128
= 596
Contoh soal 7
832 : (-32) × {228 + (-188)} – 351 = ....
Pembahasan :
Penjumlahan ada tanda kurung maka harus didahulukan
832 : (-32) × {228 + (-188)} – 351 = {-26 × 40} - 351
= (-1.040) - 351
= (-1.391)
Contoh soal 8
326 + (-352) × 45 : {(-166) – (-286)}= ....
Pembahasan :
Pengurangan ada tanda kurung maka harus didahulukan
326 + (-352) × 45 : {(-166) – (-286)} = ....
326 + {(-352) × 45} : {(-166) – (-286)} = 326 + (-15.840) : {(-166)} + 286}
= 326 + {(-15.840) : 120}
= 326 + (-132)
= 194
Contoh soal 9
{(-1.557) – (-2.357)} : 25 × {255 + (-230)} = ....
Pembahasan :
Pengurangan dan penjumlahan ada tanda kurung maka harus didahulukan
{(-1.557) – (-2.357)} : 25 × {255 + (-230)} = ....
{(-1.557) + 2.357} : 25 × {255 + (-230)} = 800 : 25 x (-5)
= 32 x (-5)
= -160
Contoh soal 10
(-24) × {(-138) + 176} : {(-582) – (-658)} = ....
Pembahasan :
Penjumlahan dan pengurangan ada tanda kurung maka harus didahulukan
(-24) × {(-138) + 176} : {(-582) – (-658)} = (-24) x 38 : {(-582) + 658}
= -912 : (-76)
= 12
