文档介绍：360 ÷[( 12 + 6) × 5] 288 ÷[( 26 - 14 ) × 8] 500 × 6-(50 × 2-80) ( 105 × 12 - 635 ) ÷ 25 864 ÷[( 27 - 23 ) × 12] ( 45 + 38 - 16 ) × 24 500 -( 240 + 38 ×6) [64 -( 87 - 42 ) ]× 15 ( 845 - 15 ×3) ÷ 1612 ×[( 49 - 28 ) ÷ 7] 450 ÷[( 84 - 48] ) ÷ 12( 58+37 ) ÷( 64-9 ×5) 95 ÷( 64-45 ) 178-145 ÷5× 6+42 812-700 ÷( 9+31 × 11 ) 85+14 ×( 14+208 ÷ 26 )( 284+16 ) ×( 512-8208 ÷ 18 ) 120-36 ×4÷ 18+35 ( 58+37 ) ÷( 64-9 ×5) (- × ) ÷ × ÷ × ( × + ) ÷ 6- ÷4 +- ÷ - ×5 6- × 3- ×( - ×4) ×( - ) + × - ( 6+ ÷ ) × [( - ) × -] ÷ ÷ [ ×( - ) +] 12 ×6÷( 12- ) -6 12 ×6÷ -6 × + × ( 58+370 ) ÷( 64-45 ) 420+580-64 × 21 ÷ 28( 136+64 ) ×( 65-345 ÷ 23 ) 388+(5000-1000) 158+262+138 178 × 99+178 375+219+381+225 5001 - 247 - 1021 - 232 ( 181+2564 ) +2719 378+44+114+242+222 276+228+353+219 (375+1034)+(966+125) (2130+783+270)+1017 7755 - (2187+755) 2214+638+286 3065 - 738 - 1065 2357 - 183 - 317 - 357 2365 - 1086 - 214 497 - 299 1883 - 398 12 × 25 138 × 25 ×4 (13 × 125) × (3× 8) (12+24+80) × 50 704 × 25 25 × 32 × 125 178 × 101 - 178 84 × 36+64 × 84 75 × 99+2 × 75 83 × 102 - 83 ×2 123 × 18 - 123 × 3+85 × 123 79 × 42+79+79 × 57 7300 ÷ 25 ÷4 8100 ÷4÷25 2356 -( 1356 - 721 ) 1235 -( 1780 - 1665 ) 75 × 27+19 ×25 31 0× 87+13 × 310 ( 181+2564 ) +2719 378+44+114+242+222 276+228+353+219 (375+1034)+(966+125) (2130+783+270)+1017 2357 - 183 - 317 - 357 2365 - 1086 - 214 12 × 25 75 × 24 138 × 25 ×4 (13 × 125) × (3× 8) 25 × 32 × 125 88 × 125 178 × 101 - 178 84 × 36+64 × 84 75 × 99+2 × 75 83 × 102 - 83 ×2 123 × 18 - 123 × 3+85 × 123 50 × (34 × 4)×3 25 ×( 24+16 ) 88 300 ÷ 125 ÷8 396-96-172-28 125 × 24 49 × 102 - 2× 49 125 × 76 ×8 - - 103 × 32 + + 41000 ÷8÷ 125 5824 ÷8×( 85 - 78 ) 840 ÷ 28 + 70 × 18 138 - 43 - 57 - 38 498 + 397 502 - 399 63 - 45 - 55 + 137 125 × 56 302 × 99 + 302 145 × 89 + 145 × 21 475 + 254 + 361 615 +