1、408122446 28) 6042501715510847)52125(97-81)32 105546912+1492 5000-5623420(327238)6942+480330432-15420+804-20100(32-30)0254-12570 (42-42)187565+7535用简便方法计算下面各题1、 89+124+11+26+482、 875-147-233 25125408 4、 1478+8535、 125646、 0.91.08 0.920.1 用简便方法计算 89+124+11+26+48875-147-231478+85312564 计算下面各题 1 280 84
2、02452 85(95144024)3 58870(105202)4 80400(430087015)5 143727 275636 81432(135278)7 125(331)8 37.4(8.67.246.6) 计算. 156107-772937.85-(7.85+6.4)75138(100-54) 85(95144024)80400(430087015)24078(154-115)1437272756375-(12+18) 15 2160(83-79)1828084024532513(266 250)85(95144024) 58870(105202)14372727563 81432
3、(135278) 37.85-(7.85+6.4) 30 156(17.7-7.2)3(947599)7664 36(91327623) 192( 5438)67 (7.1-5.6)0.9-1.152.5 81432(135278) 5.42.6(3.7-2.9)+0.62(947599)7664 60 (9.528.9)0.18 2.8810.430.243.5 20(2.441.8)0.4 0.15 28-(3.4 1.252.4)0.815.5-(3.21 5.79)(31.8 3.24)519464.81.80.936.724.259.93.416(0.01635)0.8(106.76
4、)1.2 (136+64 )(65-34523)(6.8-6.80.55)8.5 0.12 4.80.124.8(58+37)(64-95)812-700(9+3111)(3.21.5+2.5) 1.6 85+14( 14+20826)120-36418+35 (284+16 )(512-820818)9.721.6-18.3057 ( - ) 47 13 35 310( + ) + 45 14 7 3 71012.780( 13.4156.6 )37.812-700(9+3111)(136+64 )(65-34523)3.2( 1.5+2.5)1.6 85+14( 14+20826)(58+
5、37)(64-95)(6.8-6.80.55)8.5 (284+16 )(512-820818)0.12 4.80.124.8 (3.21.5+2.5) 1.6 120-36418+35 10.15-10.750.4-5.7 5.8(3.87-0.13)+4.23.74 347+452-416052 32.52-(6+9.7283.2)2.587( 58+37)(64-95)(7.1-5.6)0.9-1.15 2.5 (3.21.5+2.5) 1.6 5.42.6(3.7-2.9)+0.62 126(12-7.2 )3.26+(1.5+2.5 )1.6 (3.21.5+2.5) 1.65.8( 3.87-0.13)+4.23.7433.02(148.490.85 )2.52875+969903181554(72-58)3 2800 100789(947599)766436(91327623) (932521)95071363498723(521504)25