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2.-342
3.255
4.450
5.-144
2.-342
3.255
4.450
5.-144
Cara:
1.(-)-(-)=(+),Jadi -15-(-8)=7
2.(-)×(+)=(-), Jadi -18×19= -342
3.(+)×(+)=(+), Jadi 17×15=255
4.(-)×(-)=(+), Jadi (-50)×(-9)=450
5.(+)×(-)=(-), Jadi 16×(-9)= -144
Semoga bermanfaat maaf kalo salah
(-)=negatif
(+)=positif