1、用两位数乘除一、口算2.310= 0.25100= 0.9100= 3.84710=321000= 981000= 0.6100= 7.61000=19.3100= 3.6100= 9.23100= 8.910=21.2510= 5.25100= 421000= 80100=2.610= 3.81000= 9.1100= 19.04510=0.851000= 78010= 8.6100= 5510000=0.991000= 9.41000= 19.2710= 4100=50.9100= 26710000= 0.9100= 7.506100=851000= 456100= 25.610= 4.6
2、100=95100= 27.41000= 621000= 4231000=78.910= 3.7100= 7.51000= 3010000=50100= 60010000= 7.95610= 7.2100=3.56710= 53100= 8.4510= 757100=0.2100= 6.424100= 2.510000= 4001000=0.51000= 9.8031000= 7.21000= 9.3100=4.23100= 0.91000= 30.0310000= 11000=二、计算，打*的要验算7016= 9180= 1722= 30180= 9211=3745= 6633= *3895
3、= 6886= 5371=36724= 67925= 54708= 21333= 22419=180230= 740600= 500124= 150200= 205040=50319= 80440= 111250= 12753= 80830=*12580= 40025= 40125= 250800= 30124=8940= 51860= 9470= 54069= 61270=4823= 8424= 50072= *46951= 24120=9129= 6324= *65876= 60686= 35065=36872= 83491= 44875= 13618= 30565=8412= 10818= 8016= 32246= 57886=19628= 34572= 38516= 70024= *62031=247612= *683317= 230911= 174658= 234039=
