0.26×10.7= 1.4×2.25= 2.5×1.2=
0.41×54= 2.8×53= 103×0.25=
0.04×50.6= 3.8×2.6= 4.6×2.4=
1.05×24= 390×0.15= 0.57×23=
4.6×0.25= 0.85×0.13= 0.16×0.25=
练习二 〔10分钟完成〕
0.29×0.15= 0.37×0.24= 0.7×0.856=
14.3×38= 0.371×16= 0.52×44=
1.×0.35= 0.06×0.39= 6.18×0.99=
3.24×65= 1.48×32= 65×3.12=
37.5×1.8= 0.37×8.4= 1.12×0.85=
练习三 〔10分钟完成〕
3.78×0.26= 5.44×0.79= 0.95×2.47=
17×12.4= 2.3×240= 2.05×41=
8.72×0.56= 2.18×4.5= 5.75×1.4=
26×0.17= 2.56×25= 0.048×65=
3.8×1.25= 2.25×0.84= 2.05×2.4=
练习四 〔10分钟完成〕
4.74×0.06= 0.23×5.4= 24.8×3.7=
59×3.4= 0.93×130= 16×4.25=
0.25×0.14= 2.05×3.2= 0.38×4.5=
2.08×26= 13.9×18= 2.65×12=
0.48×0.25= 0.63×8.5= 8.02×5.8=
练习五 〔10分钟完成〕
0.13×7.45= 4.8×1.37= 38×24.6=
12.5×42= 160×3.5= 0.87×16=
0.34×2.5= 8.4×3.5= 28.6×1.9=
35×0.24= 0.217×18= 4.76×12=
4.5×4.32= 0.73×26= 0.031×25=
练习六 〔10分钟完成〕
0.36×65= 3.8×0.18= 2.18×4.5=
2.67×14= 38×0.25= 63×0.051=
2.4×3.6= 25×1.44= 0.075×38=
8.3×2.6= 0.045×201= 52×8.36=
5.75×12= 4.2×1.6= 38×0.15=
练习七 〔10分钟完成〕
8.02×17= 16×4.25= 0.93×13=
4.32×45= 2.1×0= 25×1.08=
2.65×12= 26×0.17= 12.5×0.42=
32×2.05= 0.324×17= 2.18×45=
0.16×3.5= 2.3×0.42= 0.87×2.6=
练习八 〔10分钟完成〕
2.85×1.4= 5.4×0.26= 0.45×2.17=
8.65×36= 4.5×217= 54×0.026=
3.46×1.2= 1.8×0.45= 10.4×2.5=
8.02×17= 5.75×12= 420×1.6=
9.8×1.3= 41.4×2.5= 2.5×0.35=
练习九 〔10分钟完成〕
16.4×4.5= 0.67×0.13= 1.02×0.76=
0.69×140= 204×8.5= 28.6×19=
0.045×14= 0.09×0.84= 0.32×2.05=
45×4.32= 0.73×26= 218×4.5=
0.19×0.25= 5.2×0.34= 1.32×6.8=
练习十〔10分钟完成〕
2.9×3.14= 0.73×2.02= 8.4×0.69=
0.35×25= 0.135×35= 53×0.27=
5.9×0.76= 3.5×0.67= 0.65×0.48=
0.43×2.9= 520×0.73= 81×0.17=
0.86×1.7= 0.13×0.45= 8.02×2.8=下载本文
