(8×8+8×8)×8-8-8-8 =(64+64)×8-8-8-8=128×8-8-8-8=1024-8-8-8=1000
(8*8+8*8)*8-8-8-8=(64+64)*8-8-8-8=128*8-8-8-8=1000
8 8 8+ 8+ 8+ 8 8 +8 =1000
(8*8+8*8)*8-8-8-8