1.(12x25)- 28+125= 2.678-(22x8)+324= 3.25+(-58)- 55 = 4.{(5x40)+10}:14= sama cara nya yg jelas

1.147
2.826
3.88
4.15
maaf caranya agak banyak. jadi alu kasih jawaban aja.

1.(300)-28+125 = 272 + 125 = 397
2.678-(176)+324=502+324 =826
3.25+(-58)-55= 25-58-55= (-33)-55= -88
4.{(5x40)+10}:14= {(200)+10}:14= {210}:14 =15..
semoga membantu