Đáp án:
a, (-37) +14+26+37
=-37+14+26+37
=(-37+37)+(14+26)
=0+40
=40
g)
(-12)+(-13)+36+(-11)
=-12-13+36-11
=36+(-12-13-11)
=36+(-36)
=0
b)
(-24) +6+10+24
=(-24+24)+(6+10)
=0+16
=16
h)
-16 + 24 + 16 – 34
=(-16+16)+(24-34)
= 0 + (-10)
= -10
c, 15 + 23 + (-25) + (-23)
= [15+(-25)] + [(-23)+23)
= -10 + 0
=-10
i, 25 + 37 – 48 – 25 – 37
=(25-25)+(37-37)-48
=0+0-48
=-48.
d, 60 + 33 + (-50) + (-33)
= [ 33 + (-33)] + 60 + (-50)
= 0 + 60 + (-50)
= 10
k, 2575 + 37 – 2576 – 29
=( 2575 - 2576 )+37-29
=-1+37-29
=36-29
=7
e, (-16) + (-209) + (-14) + 209
= ( - 16 - 14) + ( - 209 + 209)
= - 30
m, 34 + 35 + 36 + 37 – 14 – 15 – 16 –17
= (34-14)+(35-15)+(36-16)+(37-17)
= 20 + 20 + 20 + 20
= 20.4
= 80
CHO XIN CTRLHN Ạ :>
HOK TỐT