1)(9 -8 )*(7 -6) *(5 -4)/(3- 2) *1 =1
(2)(9 -8 )*(7- 6 )+5 +4 +(3- 2 -1 =10
(3)9 +(8 *7) +(6 *5 )+(4 *3)/ 2 -1 =100
(4) 987+6+5+4-3+2-1=1000
1)(9 -8 )*(7 -6) *(5 -4)/(3- 2) *1 =1
(2)(9 -8 )*(7- 6 )+5 +4 +(3- 2 -1 =10
(3)9 +(8 *7) +(6 *5 )+(4 *3)/ 2 -1 =100
(4) 987+6+5+4-3+2-1=1000