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1、(-)4.2^0.1=1.234-3=72.8^0.8=2」4-0.9=90x0.3=&8三2.2二3.2=1.6=1.2x0.4=12=0.3二4.2+3.5=0.36^12=1.8x040.9刊.01二2.87-0.7=423.5二0.75x4=16^1.6=7+0.25=6.25x8=2.5x4=9.08-3x7.61.288-3.2x0.9（二）3.9+2.03二5.6X1.01=3.5X3二912+99=500x0.001=12-6.2=1.5X0.4二750-240=2.56-0.37=3.5+7.6=1.25X0.5二306X5=0.99

2、+1.8=2.4X2.5=14.44-8=310-98=1.25X0.8=0.65X0.2=50X18=8404-40=5.4-2.5=0.05X0.8=5704-19=04-285=(40+1804-30)X2(240+180)4-(30X2)—（三）844-28=0.78一6二0.0950X0=3.700+3=1.15X4=73+0.4=0.119X1=5X2.4=0.884-8=200X0.8=4.02X2=1-0.01=12X0.3=110X0.4=2.5+0.18=8.14-3=774-0.7=0.03X310=0.125+4.3=2.44-

3、12=（四）50()X0.06=1-0.9=350X0.9=6.8+1.7=0.4X0.22=2.1X3=604-30=843.4二3.1X20=0.07X600=0.444-0.2=0.44+0.46=0.9X800=600X0.3=1.7X0.3二0.3+0.08=7900-7000=5X0.44=0.85-0.49=0.65-0.39=781x25三512598-25x35（五）1.100-0.5=2104-0.3=23X0.03=904-1.5=50-3.6=4.94-7=0.2X5=0.9X6=7.1-4.4=204-40=0.484-8=7

4、.2+2.8=84-16=6.44-0.8=1.6X5=0.24X2=2.54-3.7=15X0.5=2.7X3=0.1X6.!=35x69-78320x27-56（六）1.6X5=0.93X100=0.12X6=1.2-0.8=0.27-0.2=4X0.25=0.05X1.6=3」X0.3=7X0.08=0.75+0.3=60X0.5=1.24-3=1.5X0.4=1.87X0=0.06X0.9=1.8X0.04=1.4X0.3=0.8X0.7=().7X().9=6.84-4=（七）0.04X0.2=0.724-12=0.12X6=14X0.5=9

5、.64-6=0.8X0.05=0.7X1.1=136-7x7=0.16X0.5=5.24-13=6.52+72.89=77—81=9=0.484-6=1.7X0.03=12.54-5=92-37-412.1X4=4.64-23=10-5.29=31+9x8=13.596-9.1x5.69.576-0.4x1.9（八）14+5x7=124-34-1=68+1x9=66+14+79=3x7+20=49+25+81=83-8-9=22-21+43=210三7三3=27+91-42=722.7x6=4x14^7=16+76-54=113-5x3=32+9.6—

6、33=58-6-8=98-39+47=5()三5—4=6.5-0.8x5=9(H1(H9=11.259-2.1x7.989.4+93.7-26.9（九）5.3x6.3+2.3二6.4x2.4+3.6=4.2x1.8-0.1=1.6x5-0.5=4.4x7.3+53=12.48-4x9.7=8.6x6.5+6.4=9.4x8.4+5.8=4x8.8+1.5=9.8x1.3-0.3=5.59-3x4.3=0.5x4.6+7.1=4.1x0.8-0.2=4.8x9.1-0.5=0.2x5.64-2.5=6.908-1.3x1.6=9.9x1.4+0.6=2.

7、9+0.6X7.5二3.053-0.1x5.3=4.584-2.1x0.4=（十）7.34-3.8x2.3=8.999-1.7x4.7=&74-3.4x9=0.739-1.1x4.9=1.8x9.6-1.7=&6x8.9+8=03+2.8x3.5=03x0.9-0.1=9.3+6.1x4.8=1.7+03x7.6=5x1.1-0.2=9.2+9x3.9=7.5x5.74-5.8=9.8x43+9.6=2.9x8.24-9.2=8.8+0.6x0.1=8.7x0.1-0.1=7.7x9.9+7.7二3.9x1.7+0.5=8.9x5.2+93=4.8+3

8、.1X9.113x2.2-0.2（十一）15X3=3X150=125X4=60X90=15X3