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1、最新资料推荐0.8 0.6=1.25X 80=5.243.76=625X 0.8=4.23.6=0.32 - 16=130.26=9.6 - 16=14.50.24=4-8=1.38.46=0.80.45=5X 2.4=10.01=8.1 - 3=2.4 - 12=250X 0.4=20.52.05=37.5X400=0.782.2=1.5 X 8=6X 1.5=25X 0.4=9.6 - 16=40.04=4.150.85=100.1=0.13X7=9.6 - 4=0.16 - 8=0.8X 25=0X 4.23=0.57+0.43=2.4X 0.2=0.02X 500=2.89+9.17=
2、2.8X10=8.29X100=2.5X 0.4=4.87-1.7=8.07 X 1000=25.6X 3=0.328 - 8=3.51 - 3=7.21 -7 =23-25=3.64 - 14 =1.06 X 0.82=7.8 - 28=600- 50=2X0.16=84X 0.25=0.36X 0.9=0.06X 0.75=2.4 - 3=20X 0.5=0.8X 6=1000X 0.09=1.35 - 27=0.41 X2. 01=58X 0.32=1.08 X 52=0.63X0.12=8.5X 0.54=5.62X 2.4=0.28X0.16=10二、列竖式计算1.64 2.35=8
3、.65 6.31=28.448 - 14=0.58 X 250=12.5 3.6=10.88 - 34=107.64=1.86 X 7=13.886.29=926X0.15=8- 500=26.37.93=13.68.46=100.2 2.28=44- 9精确到百分位23X 7.06=三、计算（能简便的用简便方法计算）8X 25X 1 25X 164 04X 2504555（6821555）32X 993248X 3961 X 4834521787122325X 56+45X 65489X 109489457+317+343+5 838540）X（ 205）578 405 - 45 X 164
4、6X 5648X 4646 X 45x = 45012(6 x )= 421.2 X 6+4x= 12(4) 8.5x x = 22.5用简便方法计算。36X 10.10.25 X 3.2X12.50.25X4422.2 X4+17.8X 43.8X6.7+3.3X3.81.28 X0.29 -0.29X0.28(37 3.6 - 4.8 )- 12.5用递等式计算。2.6+1.4 X 1.5 1.52.6+2.4 X(1.41.05)15.6- 16X( 0.25+1.25 )30.8 - 14-(9.85+1.07)60- (9.5+28.9)- 0.182.881 - 0.4 3-0.2
5、4 X 3.520X (2.44 -1.8) - 0.4+0.1528-(3.4+1. 25X2.4)2.55X7.1+2.45X7.1777X 9+1111X30.8 X 15.5 -(3.21+5.79)(31.8+3. 2X 4)-531.5 X 4 -(6+3)0.64X 25X 7.8+2.22-2.5+2.5 十2469X 12+149219.4X 6.1 X 5.67X 0.2 -0.6218.1 X 0.92+3.930.4X 0.7X 0.250.78+5.436+14. 8X5宁 4+1*49x5 宁 6+5*63*4x8*9-1*331x5*6-5*616.5*9x18-14x2*736.178-145* 5X 6+427.2 * 0.8-1.2 X 56.5X(4.8-1.2 X4)28-(3.4+1.25 X2.4)