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1、. 0.80.6=1.25×80=5.243.76=625×0.8=4.23.6=0.32÷16=130.26=9.6÷16=14.50.24=4÷8=1.38.46=0.80.45=5×2.4=10.01=8.1÷3=2.4÷12=250×0.4=20.52.05=37.5×400=0.782.2=1.5×8=6×1.5=25×0.4=9.6÷16=40.04=4.150.85=100.1=0.13×7=9.6÷4=0.16÷
2、;8=0.8×25= 0×4.23= 0.57+0.43= 2.4×0.2= 0.02×500= 2.89+9.17=2.8×10= 8.29×100=
3、; 2.5×0.4= 4.87-1.7= 8.07×1000= 25.6×3=0.328÷8= 3.51÷3= 7.21÷7=23÷25= 3.64÷14 = 1.06×0.82=7.8÷28= 600÷50= 2×0.16=84×0.25= 0.36×0.9=
4、 0.06×0.75=2.4÷3= 20×0.5= 0.8×6=1000×0.09= 1.35÷27= 0.41×2.01=58×0.32= 1.08×52= 0.63×0.12=8.5×0.54= 5.62×2.4= 0.28×0.16=二、列竖式计算1.642.35=8.656.31=28.448÷14=0.58×250=12.53.6=10.88÷34=107.64=1.86×7=13.886.29=926×0
5、.15=8÷500=26.37.93=13.68.46=100.22.28=44÷9精确到百分位 23×7.06=三、计算（能简便的用简便方法计算）8×25×125×16 404×2504555（6821555）32×993248×3961×4834521787122325×56+45×65489×109489457+317+343+583（8540）×（205）578405÷45×1646×5648×4646
6、15;45x450 12（6x）42 1.2×6+4x12 （4）8.5xx22.5 用简便方法计算。 0.25 ×3.2×12.5 36×
7、10.1 0.25×44 22.2×4+17.8×4 3.8×6.7+3.3×3.81.28×0.29-0.29×0.28用递等式计算。 2.6+1.4×1.51.5
8、 （373.6÷4.8）÷12.5 2.6+2.4×（1.41.05） 15.6÷16×（0.25+1.25）30.8÷14-(9.85+1.07) 60-(9.5+28.9)÷0.18 2.881÷0.43-0.24×3.5 20×(2.44
9、-1.8)÷0.4+0.15 28-(3.4+1.25×2.4) 2.55×7.1+2.45×7.1 777×9+1111×3 0.8×15.5-(3.21+5.79)(31.8+3.2×4) ÷ 5
10、; 31.5×4÷(6+3) 0.64×25×7.8+2.2 2÷2.5+2.5÷2 469×12+1492 19.4×6.1×5.6
11、7×0.2-0.62 18.1×0.92+3.93 0.4×0.7×0.25 0.78+5.436+1 4. 8× 5÷4+1÷4 9x5÷
12、;6+5÷6 3÷4x8÷9-1÷3 31x5÷6-5÷6 16. 5÷9x18-14x2÷7 36. 178-145÷5×6+42 7.2÷0.8-1.2×5 6.5×（4.8-1.2×4） 28-(3.4+1.25×2.4)；.