一、计算下列各题,能简算的要简算 25×13 ÷52 ×310 13.09-8.12-4.88 12×103-4500÷75 223×7+3×5 1131028 ×[2 ÷(5 ×9 )] (15 +311 )×15×11 37.5+19.5÷2.5×4 0.92×1.41+0.92×8.59 235 - 135÷18 3417771215 ×153 – 0.6×53 (5 +4 )÷3 +10 10 - 19 - 19 + 19 4-511-711 18×58+18×41+18 45×47×54-12 45×56+25÷35 45÷[(5158-2)÷8] (21×37+47×21)×14 (99+910)÷9 45×56÷58 14421015÷[(5+3)×11] (56+45)×30 13+3÷12 (51557592525124)6 912125 3456 63(543511316153119217) [8(23)4]23 (32×4+17)÷12 (25+4)÷4+4 1825×916+725×916+916 (16-112)×24-45) (57×47+47)÷412117 5÷[(3+5)×13] 3-712-512 57×38+58×57 815×516+527÷109 18×(49+56) 56×65-910÷95 2008×20062007 11111323124177713 -13 ×33 ( 3+4-2)×12 3 +( 7 + 2 )×25 25×101-25 253227233413138 ×8 27 ×(15×28 )×15 8 +8 ×7 +38 ×388887 9 ×9 ÷9 ×9 29÷27×27 二、解方程 78χ=1116 χ×(34+23)=724 χ-35χ=65 6×112-12χ=12 8x-14×3=454 (x-6)×56=25 x:710=528 59x1011 134x2 34χ+14=12 χ-45χ=12 χ+10%χ=110 5X-3×7710=5 45+12X=910 13χ+60%χ=28 1.6∶χ=0.125∶0.5 1.75x-0.5x=6.25 3554 x-8 =6 ×30% X×3=20×1 25% + 10X = 4545 X - 15%X = 68 6:x=317 :3 本文来源:https://www.wddqw.com/doc/35a8d08267ce0508763231126edb6f1afe007156.html