怎样简便就怎样计算

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1、怎样简便就怎样计算（35分）。355+260+140+2455-180-245382X101-382-4X3530.8-[14-(9.85+1,07)]2.881+0.43—0.24X3.528-(3.4+1.25X2.4)0.8X[15.5-(3.21+5.79)102X994X60X50X82X1256435X8+35X6[60-(9.5+28.9)]+0,1820X[(2.44—1.8)-0.4+0.15]2.55X7.1+2.45X7.1(31.8+3,2X4)+531.5X4+(6+3

2、)777X9+1111X30.64X25X7.8+2.236.72+4.25X9.9(4121+2389)-7405X(3213-3189)19.4X6,1X2,30.0430.24+0.8750.78+5.436+12+2.5+2.5+25180-705X6671X15-9743.416+(0.016X35)5.67X0.2-0.62194—64.8+1,8X0,924+2.4-2.5X0,8469X12+14920.8X[(10-6.76)+1,2]18.1X0.92+3.930.4X0,7

3、X0.250.75X1024.07X0.86+9.12.5100-56.231、89+124+11+26+4822、875-147-233.25X125X40X845、125X646用简便方法计算①89+124+11+26+48计算下面各题.1.280+840-24X523.58870+(105+20*2)5.1437X27+27X5637.125X(33—1)计算：4、147X8+8X536、0,9+1.08+0.92+0.1②875-147-23③147X8+8X53④125X642.85X

4、(95—1440+24)4.80400—(4300+870+15)6.81432+(13X52+78)8.37.4-(8.6+7.24-6.6)(1)156X107-7729(2)37.85-(7.85+6.4)(3)287X5+96990318(4)1554+[(72-58)X3]脱式计算2800+100+789(947-599)+76X641.36X(913—276+23)2.(93+25X21)X93.507+13X63+4984.723-(521+504)-253.384+12+23X3

5、714.(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+318)(4)81+[(72-54)X9]57X12-560+35138X25X425X32X12575X99+2X75848—640+16X12(13X125)X(3X8)32X(25+125)83X102-83X2960+(1500-32X45)(12+24+80)X50178X101-17898X199704X2584X36+64X8

6、4123X18-123X3+85X12379X42+79+79X5731X870+13X310(12+24+80)X50178X101-17850X(34X4)X37300+25-44X(25X65+25X28)25X32X12584X36+64X8498X199123X18-123X3+85X123178X99+17879X42+79+79X5725X(24+16)178X99+1788100+4+75138X25X432X(25+125)75X99+2X7550X(34X4)X37300+2

7、5-475X27+19X25(13X125)X(3X8)102X7658X9883X102-83X225X(24+16)8100+4+75