A. – 30 x 20 x 40

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b. -12 x (22) x 78
c.70 x 30 x (-10)
d.2 x ( 3+7 )
e.-5 x (5+3)
f.4 x (8-3)
g.-6 x ( -4 – 5 )

A. – 30 x 20 x 40

A. -240000
b. -22152
c. -21000
d. 20
e -25
f 20
g 54

A= -2400
b= -10.592
c= -21.000