怎样简便就怎样计算

1、怎样简便就怎样计算（35分）。4355+260+140+245645-180-245382x101-382x 6-4x3530.8 -14- (9.85 + 1,07)2.881 +0.430.24 x3.528- (3.4+1.25 x2.4)0.8 x 15.5-(3.21+5,79)102x994x60x50x82.55 x7.1+2.45 x7.1(31.8+3,2 x4) +52x 12535x8+3560 -(9.5 +28.9) +0,1820x(2.44 1.8 )-0.4+ 0.15777x9+1111x331.5 x4+ (6+3)0.64 x 25x7.8+2.2 36.

2、72+4.25x9.9(41 21+2389) + 7 405x(3213 -3189) 19.4 x6,1 x2,3 0.0430.24+0.8750.78+5.436+12+2.5+2.5 +25180-705x6671x15-9743.416 + (0.016x35)5.67 x0.2 -0.62194 64.8+1,8 x0,924+ 2.4-2.5 x0,8469x12+14920.8 x(10 -6.76) +1,218.1 x 0.92+3.930.4 x0,7 x0.250.75 x1024.07 x0.86+9.12.5100-56.231、89+124+11+26+48 2

3、2、 875-147-233. 25x125x40x8 45、125x64 6用简便方法计算89+124+11+26+48计算下面各题.1. 280+ 840-24x5 23. 58870+(105 + 20*2)5. 1437x 27+ 27x 5637. 125x (33 1)计算：4、147x 8+8x 536、0,9 + 1.08 +0.92 +0.1875-147-23147x 8+8x 53 125x 642 . 85x (95 1440+ 24)4. 80400 (4300 + 870+15)6. 81432+ (13x52+ 78)8. 37.4 -(8.6 + 7.24 -6

4、.6)(1) 156x107 -7729(2) 37.85- ( 7.85+6.4 )(3) 287x 5+96990 318 ( 4) 1554+ ( 72-58 ) x 3脱式计算2800- 100 + 789(947-599) +76x 641 . 36x(913276+ 23)2. (93 +25x21)x93. 507+ 13x63+ 4984. 723- (521 +504)-255. 384+12+ 23x3716. (39 -21)x(396-6)(1) 156x(17.7 -7.2) +3 ( 2) 37.85- (7.85+6.4 ) x30(3) 28x(5+969.9

5、+318)57x 12-560+ 35138x25x425x 32 x 12575x 99+2x 75(4) 81+ ( 72-54)848640+ 16x 12(13x125)x(3x8)32x(25+125)83x102- 83x2x9960+ ( 1500-32x45)(12+24+80) x50178x101- 17898x199704x2584x36+64x84123x 18-123x3+85x12350x(34x4) x325x ( 24+16)178x99+17875x27+19x2 5(13x125) x(3x8)102x76 58 x9883x102-83x279x42+79+79x5731x870+13x310(12+24+80) x50178x101- 1787300+ 25+ 44x(25 x 65+25x28)25x32x12584x36+64x848100+ 4+ 75138x25x432x(25+125)75x 99+2x 7598x199123x