Question

Bài 1 : a) (5893 - 1973 + 971 ) + ( 1973 - 5893 ) ; b) ( 718 - 82 + 31 ) + ( 82 - 31 ) ; c) ( 19 - 183 ) + ( 183 + 73 - 19 ) ; d) ( 827 + 1853 ) - ( 826 + 827 +1853 ) ; e) ( 38 - 183 ) - ( 19 + 38 - 183 ) giải chi tiết giúp mình ạ 

Answer 1

a: =5893-1973+971+1973-5893=971

b: =718-82+31+82-31=718

c: =19-183+183+73-19=73

d: =827+1853-826-827-1853=-826

e: =38-183-19-38+183=-19

Answer 2

bài 1,

\(a,\left(5893-1973+971\right)+\left(1973-5893\right)\)

\(=5893-1973+971+1973-5893=\left(5893-5893\right)+\left(1973-1973\right)+971=0+0+971=971\)

\(b,\left(718-82+31\right)+\left(82-31\right)\)

\(=718-82+31+82-31=718+\left(82-82\right)+\left(31-31\right)=718+0+0=718\)

\(c,\left(19-183\right)+\left(183+73-19\right)\)

\(=19-183+183+73-19=\left(19-19\right)+\left(183-183\right)+73=0+0+73=73\)

\(d,\left(827+1853\right)-\left(826+827+1853\right)\)

\(=2680-3506=-826\)

\(e,\left(38-183\right)-\left(19+38-183\right)\)

\(=-145-\left(-126\right)=-19\)