408-12×24 46+28)×60 42×50-1715÷5 108+47)×52 125×(97-81) 32+105÷5 469×12+1492 5000-56 ×23 420×(327-238)6942+480÷3 304×32-154 20+80÷4-20=100÷(32-30)×0=25×4-12 ×5=70×〔(42-42)÷18〕=75×65+75×35=用简便方法计算下面各题1、89+124+11+26+48 2、875-147-23 3.25×125×40×8 4、147×8+8×53 5、125×64 6、0.9+1.08+0.92+0.1 用简便方法计算①89+124+11+26+48 ②875-147-23 ③147×8+8×53 ④125×64 计算下面各题.1.280+840÷24×5 2.85×(95-1440÷24) 3.58870÷(105+20×2) 4.80400-(4300+870÷15) 5.1437×27+27×563 6.81432÷(13 ×52+78) 7.125×(33-1) 8.37.4-(8.6+7.24-6.6) 计算 . 156×107-7729 37.85-(7.85+6.4)75÷〔138÷(100-54)〕85×(95-1440÷24) 80400-(4300+870÷15) 240×78÷(154-115)1437×27+27×563 75-(12+18)〕÷15 2160÷〔(83-79)×18〕280+840÷24×5 325÷13×(266-250) 85×(95-1440÷24) 58870÷(105+20×2) 1437×27+27×563 81432÷(13 ×52+78) [37.85-(7.85+6.4)] ×30 156×[(17.7-7.2)÷3] (947-599)+76×64 36×(913-276÷23) [192-(54+38)] ×67 [(7.1-5.6)×0.9-1.15]÷2.5 81432÷(13 ×52+78) 5.4 ÷[2.6 ×(3.7-2.9)+0.62] (947-599)+76×64 60-(9.5+28.9)]÷0.18 2.881 ÷0.43-0.24 ×3.5 20×[(2.44-1.8) ÷0.4+0.15] 28-(3.4 1.25×2.4) 0.8 ×〔15.5-(3.21 5.79)〕(31.8 3.2 ×4)÷5 194-64.8 ÷1.8 ×0.9 36.72 ÷4.25 ×9.9 3.416 ÷(0.016 ×35)0.8 ×[(10-6.76) ÷1.2] (136+64)×(65-345÷23)(6.8-6.8×0.55) ÷8.5 0.12 × 4.8 ÷0.12 ×4.8 (58+37)÷(64-9×5)812-700 ÷(9+31×11)(3.2 ×1.5+2.5)÷1.6 85+14×(14+208÷26)120-36 ×4÷18+35 (284+16)×(512-8208÷18)9.72 ×1.6-18.305÷7 ÷ [ ×(- )] (+ )÷ +12.78-0÷( 13.4+156.6 )37.812-700 ÷(9+31×11)(136+64)×(65-345÷23)3.2 ×(1.5+2.5)÷1.6 85+14×(14+208÷26)(58+37)÷(64-9×5)(6.8-6.8×0.55) ÷8.5 (284+16)×(512-8208÷18)0.12 × 4.8 ÷0.12 ×4.8 (3.2 ×1.5+2.5)÷1.6 120-36 ×4÷18+35 10.15-10....