Đáp án:
a/22.14 + 78. 27 – 100.23
=308 + 2106 - 2300
=2414- 2300
= 114
b) ( - 40) + 3160 + ( - 207)
=3160+[(- 40)+ ( - 207)]
=3160+(-247)
=2193
c/-3.(-2)³ + 2.(-5) : 4
=-3(-8)+2(-5) :4
=16-10:4
=16-2,5
=13,5
d/- 417.(83 + 89) + 83.(417 - 89)
=-417.172+83.323
=-71724+26809
=-44915