1.a.400x(-60) .b.(-40)x600 .c.(-400)x(-600) 2.a.12x(-7)+(-16):(-2) .b. -15:(-3)-7x(-4)

1)A. 400×(-60)= -24000
B)(-40)×600=-24000
C)(-400)×(-600)=240000
2)A.12×(-7)+(-16)÷(-2)=-84+8=-76
B.1)-15:(-3)-7×(-4=5-(-28=5+28=33

1
a.400×(-60) = -24,000
b.(-40)×600 = -24,000
c.(-400)×(-600) = 240,000

2
a.12×(-7)+(-16):(-2)
= (-84)+8
= (-76)

b. -15:(-3)-7×(-4)
= 5 - (-28)
= 33

Maaf salah