1/ ( – 37) + 14 + 26 + 27
2/ (-24) + 6 + 10 + 24
3/ 15 + 23 + (- 25) + (-23)
4/ 60 + 33 + ( -50) + (-33)
5/ ( – 16 ) + (-209) +( -14) + 209
6/ ( – 120 + ( -13 ) + 36 + (-11)
7/ -16 + 24 + 16 -34
8/ 25 + 37 -2576 -29
9/ 2576 +37 – 2576 – 29
10/ 34 + 35 + 36 + 37 – 14 -15 -16 -17
1/ ( – 37) + 14 + 26 + 27 2/ (-24) + 6 + 10 + 24 3/ 15 + 23 + (- 25) + (-23) 4/ 60 + 33 + ( -50) + (-33) 5/ ( – 16 ) + (-209) +( -14) + 209 6/ ( – 120
By Caroline
1/(-37)+14+26+27
[( – 37) + 27]+ [14 + 26 ]
-10+40
30
2/(-24) + 6 + 10 + 24
(-24) + 24 + 6 + 10
0 + 6 + 10
16
6/ ( – 120) + ( -13 ) + 36 + (-11)
(-120) + [ -13 + (-11)] + 36
-120 + [(-24) + 36]
-120 + 12
-118
8/ 25 + 37 -2576 -29
25-29-2576+37
-4-2576+37
-2580+37
-2543
10/ 34 + 35 + 36 + 37 – 14 -15 -16 -17
(34-14)+(35-15)+(35-16)+(37-17)
20+20+20+20
80
MK LM MẤY CÂU TRÔNG KHÓ THÔI
1/ ( – 37) + 14 + 26 + 27
=[(-37) + 27] + (14 +26)
=-10 + 40
=30
2/ (-24) + 6 + 10 + 24
=[(-24) + 24] + 6 + 10
=0 + 6 + 10
=16
3/ 15 + 23 + (- 25) + (-23)
=[15 + (-25)] + [23 + (-23)]
= -10 + 0
=10
4/ 60 + 33 + ( -50) + (-33)
= [33 + (-33)] + [60 + (-50)]
= 0 + 10
= 10
5/ ( – 16 ) + (-209) +( -14) + 209
=[(-209) + 209] + [(-16) + (-14)]
= 0 + (-30)
=(-30)
6/ ( – 120) + ( -13 ) + 36 + (-11)
= [(-120) +(-13)] + [36 +(-11)]
= -133 + 25
= -108
7/ -16 + 24 + 16 -34
=[-16 + 16] + [ 24 + ( -34)]
= 0 + -10
= -10
8/ 25 + 37 -2576 -29
= 62 – 2538
= -2476
9/ 2576 +37 – 2576 – 29
= (2576 – 2576) + ( 37 – 29)
= 0 + 8
= 8
10/ 34 + 35 + 36 + 37 – 14 -15 -16 -17
= (34 -14) + (35 – 15) + (36 – 16) + (37 – 17)
= 20 + 20 + 20 + 20
= 80
chúc bn học tốt