9计算题（能简便的要简便、一张=0.45×1081.056×2521.45÷1510.5÷0.750.15×2.046.21÷0.0319.76÷5.210.8÷4.5210÷148.4÷0.5625.84÷1.711.7÷2.62.688÷0.560.16÷0.2510÷0.00410.625÷25126÷452.7÷7.50.375÷0.02515÷0.06

Question

9计算题（能简便的要简便 、一张=
0.45×108 1.056×25 21.45÷15 10.5÷0.75 0.15×2.04 6.21÷0.03
19.76÷5.2 10.8÷4.5 210÷14 8.4÷0.56 25.84÷1.7 11.7÷2.6
2.688÷0.56 0.16÷0.25 10÷0.004 10.625÷25 126÷45 2.7÷7.5
0.375÷0.025 15÷0.06 25.6÷0.032 0.054÷3.6 672÷6.4 91.2÷57
0.448÷5.6 21÷24 741÷0.13
好吧、人懒、不想做、各位大侠帮帮忙好了- - 十二点半就要去交了..
= =注意好么、要的是过程、计算机算的话还用提问嘛。

Answer 1

0.45×108=0.45×(100+8)=0.45×100+0.45×8=45+3.6=48.6
1.056×25=1.056×(100÷4)=1.056×100÷4=105.6÷4=26.4
21.45÷15=21.45÷3÷5=7.15÷5=1.43
10.5÷0.75=10.5÷(3÷4)=10.5÷3×4=3.5×4=14
0.15×2.04=0.15×(2+0.04)=0.15×2+0.15×0.04=0.3+0.006=0.306
6.21÷0.03=621÷3=207
19.76÷5.2=19.76÷4÷1.3=4.94÷1.3=3.8
10.8÷4.5=10.8÷(9÷2)=10.8÷9×2=1.2×2=2.4
210÷14=210÷(7×2)=210÷7÷2=30÷2=15
8.4÷0.56=8.4÷(0.04×14)=8.4÷0.04÷14=210÷7÷2=30÷2=15
25.84÷1.7=25.5÷1.7+0.34÷1.7=15+0.2=15.2
11.7÷2.6=(13-1.3)÷1.3÷2=(10-1)÷2=9÷2=4.5
2.688÷0.56=268.8÷56=(280-11.2)÷56=5-0.2=4.8
0.16÷0.25=16÷25=16÷(100÷4)=16×4÷100=64÷100=0.64
10÷0.004=10000÷4=2500
10.625÷25=10.625÷(100÷4)=10.625×4÷100=42.5÷100=0.425
126÷45=(135-9)÷45=3-0.2=2.8
2.7÷7.5=2.7÷3÷2.5=0.9÷2.5=0.9÷10×4=0.36
0.375÷0.025=375÷25=375÷(100÷4)=375×4÷100=1500÷100=15
15÷0.06=1500÷6=(1200+300)÷6=200+50=250
25.6÷0.032=25600÷32=25600÷8÷4= 3200÷4=800
0.054÷3.6=54÷3600=54÷9÷4÷100=6÷4÷100=1.5÷100=0.0015
672÷6.4=6720÷64=6720÷8÷8=840 ÷8=105
91.2÷57=(114-22.8)÷57=2-0.4=1.6
0.448÷5.6=448÷5600=448÷56÷100=8÷100=0.08
21÷24=21÷3÷8=7÷8=0.875
741÷0.13=74100÷13=(65000+9100)÷13=5000+700=5700