(5674-97)+(97+18-5674)
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(5674 – 97) – 5674 = 5674 – 97 – 5674
= (5674 – 5674) – 97 = 0 – 97 = -97
a. 8-(3+7)= 8-3-7=-2
b. (-5)-(9-12)=-5-9+12=-2
c. (5674-97)+(97+18-5674)=5674-97+97+18-5674=18
d. (13-135+49)-(13+49)=13-135+49-13-49=-135
e. x+8-(x+22)=x+8-x-22=-14
f. -(x+5)+(x+10)-5=-x-5+x+10-5=0
a. (5674 - 97) - 5674
= 5674 - 5674 - 97
= -97
b. (-1075) - (29 - 1075)
= -1075 + 1075 - 29
= -29
a,\(\left(5674-97\right)-5674=5674-97-5674=\left(5674-5674\right)-97=-97\)
b,\(-1075-\left(29-1075\right)=-1075-29+-1075=\left(-1075+1075\right)-29=-29\)c
\(\left(13-135+49\right)-\left(13+49\right)=13-135+49-13-49=-135\)
Nếu thấy mình làm đúng thì tick nha bạn,cảm ơn.
a) ( 5674 - 97 ) - 5674
= ( 5674 - 5674 ) - 97
= 0 - 97
= -97
a, (-8)-(-12-8)=(-8)+12+8= [(-8)+8}]+12= 0+12=12
b, 1765-(312+1765)= 1765-312-1765=(1765-1765)-312=0-312=-312
c. (31-12)-(46+31-12)= 31-12+46-31+12= (31-31)+(12-12)+46=0+0+46=46
d, (5674-97)-5674=5674-97-5674=(5674-5674)-97=0-97=-97
e, (-1075)-(29-1075)=(-1075)+29+1075=[(-1075)+1075]+29=0+29=29
g, (18+29)+(158-18-29)=18+29+158-18-29=(18-18)+(29-29)+158=0+0+158=158
h, (13-135+49)-(13+49)=13-135+49-13-49=(13-13)+(49-49)-135=0+0-149=0-149=-149
a) (5674-97) - 5674
= (5674-5674)-97
= 0-97
= -97
b) (-1075) - (29-1075)
= -1075 - 29 + 1075
= (-1075+1075) - 29
= 0 - 29
= -29
a, \(\left(5674-97\right)-5674\)
\(=\left(5674-5674\right)-97\)
\(=0-97=-97\)
b,\(\left(-1075\right)-\left(29-1075\right)\)
=\(-1075-29+1075\)
\(=\left(-1075+1075\right)-29\)
\(=0-29=-29\)
Bài 1:
a) 248 + (-12) + 2064 + (-236)
= 248 - 236 + 2064 - 12
= 12 + 2052
= 2064
b) (-298) + (-300) + (-302)
= -298 - 302 - 300
= -600 - 300
= -900
c) 5 + (-7) + 9 + (-11) + 13 + (-15)
= -2 - 2 - 2
= -6
d) (-6) + 8 + (-10) + 12 + (-14) + 16
= 2 + 2 + 2
= 6
e) 456 + [58 + (-456) + (-38)]
= 456 - 456 + 58 - 38
= 0 + 20
= 20
Bài 2:
a) 8 - (3 + 7)
= 8 - 3 - 7
= -2
b) (-5) - (9 - 12)
= -5 - 9 + 12
= -2
c) (5674 - 97) + (97 + 18 - 5674)
= 5674 - 97 + 97 + 18 - 5674
= 18
d) (13 - 135 + 49) - (13 + 49)
= 13 - 13 - 135 + 49 - 49
= -135
e) x + 8 - (x + 22)
= x + 8 - x - 22
= -14
f) - (x + 5) + (x + 10) - 5
= -x - 5 + x + 10 - 5
= 0
\((5674-97)+(97+18-5674)\)
\(=5674-97+97+18-5674\)
\(=(5674-5674)+(-97+97)+18\)
\(=0+0+18\)
\(=18\)
5674-97+97+18-5674=18