Tolong di jawab jawab Plis ​

Jawaban:

(a)

1. -25+17= 17+(-25)

2. 35+(-6)= -6+35

3. -48+(-15)= -15+(-48)

4. 58×(-7)= -7×58

5. 72×12= 12×72

(b)

1. 25+(-75+(-45)=(25+(-75)+(-45)

-50+(-45)

95

2. (-32+60)+40= -32+(60+40)

-32+100

68

3. 125+(75+(-50)=(125+75)+(-50)

200+(-50)

150

4. (23×(-5)×(-20)=23×(-5)×(-20)

23×100

2300

5. -25×(-4×18)=(-25×(-4)×18

100×18

1800

semoga membantu