e) 2.(-4).25.(50)
f) 47.69-31.(-47)
g)-310.87+(-310).13
h) 5.(-3) ² -14.(-8)+(-31)
i) 6.(-2) ³+5.(-4)+ ║-12 ║
e) 2.(-4).25.(50) f) 47.69-31.(-47) g)-310.87+(-310).13 h) 5.(-3) ² -14.(-8)+(-31) i) 6.(-2) ³+5.(-4)+ ║-12 ║
By Ruby
By Ruby
e) 2.(-4).25.(50)
f) 47.69-31.(-47)
g)-310.87+(-310).13
h) 5.(-3) ² -14.(-8)+(-31)
i) 6.(-2) ³+5.(-4)+ ║-12 ║
e) 2.(-4).25.50
=(-4.25).(2.50)
=-100.100
=-10000
f) 47.69-31.(-47)
=3243-(-1457)
=4700
g)-310.87+(-310).13
=-310.(87+13)
=-310.100
=-31000
h)5.(-3)²-14.(-8)+(-31)
=5.9-14.(-8)+(-31)
=45-(-112)+(-31)
=157+(-31)
=126
i)6.(-2)³+5.(-4)+║-12║
=6.(-8)+5.(-4)+12
=-48+(-20)+12
=-68+12
=-56
em tham khảo nha
e) 2 . (-4) . 25 . 50
= (-4 . 25) . (2 . 50)
= -100.100
= -10000
f) 47 . 69 – 31 . (-47)
= 3243 – (-1457)
= 4700
g) -310.87 + (-310) . 13
= -310 . (87 + 13)
= -310 . 100
= -31000
h) 5 . (-3)² – 14 . (-8) + (-31)
= 5 . 9 – 14 . (-8) + (-31)
= 45 . (-112)+(-31)
= -5040 + (-31)
=-5071
i)6.(-2)³+5.(-4)+║-12║
=6.(-8)+5.(-4)+12
=-48+(-20)+12
=-68+12
=-56