；寫成比是1：4=5：20；寫成除法算式是1÷4=3÷12；由此即可填空．
名校課堂系列答案科目：小學數(shù)學 來源： 題型：
| 直接寫出計算結(jié)果 83-25= |
5-
|
3.5÷7= | 3.5+0.6= |
| ||||||||||
6.4+
|
0.5+（0.5-
|
4×25%= | 2.5×32×12.5= | 20-
|
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科目：小學數(shù)學 來源： 題型：閱讀理解
| 4.7+2.3= | 4.5×2= | 6.9-2.5= | 7.2×0.8= |
| 6×3.4= | 0.62-0.32= | 1.4×0.5= | 0.75×100= |
| 0.02×0.5= | 3.6÷0.3= | 6.3÷7= | 5.6÷100= |
| 0.75÷0.25= | 0.125×8= | 4.8÷0.3= | 0.96÷2= |
| 0.56÷28= | 0.36÷0.4= | 0.64÷0.8= | 0.72÷3.6= |
| 3.6÷24= | 0.8×1.1= | 7.2+12.8= | 46.7-3.8= |
| 12.8÷4= | 5.2÷13= | 12.5÷5= | 1.64÷41= |
| 10÷20= | 24÷15= | 8.65×10= | 0.35×0.6= |
| 3.08×0.01= | 4.95×1000= | 6.9×0.1= | 0.4×0.5= |
| 2.4÷0.8= | 10.8÷9= | 9.6÷0.8= | 0.108÷2= |
| 4.95÷0.9= | 9.65÷0.1= | 0.325×100= | 2.5×8= |
| 0.56÷0.7= | 0.125×4= | 3.28×0.1= | 3.9÷0.13= |
| 7.2×0.1= | 0.01×0.1= | 0.25×0.4= | 1.6÷0.8= |
| 1÷2.5= | 1.25×0.8= | 3.2÷0.04= | 0÷1.7= |
| 0.22×102= | 9.6÷0.8= | 5×0.24= | 4.5-0.05= |
| 3.9÷0.13 | 16.5÷0.5= | 5×0.12= | 24×0.5= |
| 4.8×0.5= | 2.8+4.2= | 0.84÷2.1= | 5÷0.25= |
| 7.8÷0.01= | 5.4÷0.6= | 3.2÷5= | 7×0.62= |
| 0.56÷0.8= | 7.4-2.8= | 0.18÷0.2= | 0.16÷8= |
| 4.5×0.02= | 8+7.2= | 1.2×30= | 0.012×0.2= |
| 7.3×0.3= | 9÷6= | 3.6÷0.12= | 7.8÷0.6= |
| 2÷5= | 4.5+5= | 0.3÷0.6= | 0.96÷0.2= |
| 10.5×0.4= | 7.3+0.27= | 8×0.125= | 0.54÷0.6= |
| 0.61+0.39= | 0.56÷28= | 10÷20= | 4.08÷0.4= |
| 11-9.4= | 0.8×0.11= | 0.72+12.8= | 5.6÷0.01= |
| 2.3×100= | 0.75×100= | 0.108÷2= | 10.8÷9= |
| 0.7÷0.8= | 16-5.07= | 4.2×0.4= | 0.72×6= |
| 12÷0.5= | 5.2×0.4= | 12.2÷0.2= | 5.6÷100= |
| 0.41+3.7= | 0.02×0.5= | 7.2-0.8= | 1.4×0.5= |
| 84÷0.21= | 0.75÷0.25= | 2.5×16= | 0.108÷2= |
| 1.75+32.5= | 16-5.07= | 5.2÷13= | 1.64÷41= |
| 1.02×0.2= | 0.26×0.3= | 8.4×0.02= | 1.29×6= |
| 0.8×0.05= | 12.6÷0.03= | 8.71÷0.1= | 21÷0.21= |
| 0.8×0.13= | 0.34÷17= | 8.08÷0.4= | 0.5×2.2= |
| 1.24÷4= | 3.27+0.63= | 5.02×0.3= | 0.3×0.5= |
| 6.4÷4= | 7.2÷1.8= | 0.7÷0.35= | 0.72÷1.44= |
| 0.48÷0.04= | 1.25÷2.5= | 5.5+55= | 16.8÷8= |
| 0.54+2.2= | 3.5-0.05= | 2÷0.02= | 0.25×40= |
| 1.5×0.6= | 0.32÷0.8= | 12.25÷0.5= | 73.5×0.1= |
| 46.5+52.5= | 0.45×102= | 1.25×88= | 2.64+3.85+1.54= |
| 8×1.25= | 5.6÷3.5= | 4.2÷0.7÷6= | 0.4×8.6×25= |
| 0.27÷0.3= | 2.5×101= | 0.65×101-0.65= | 2.6×7÷2.6×7= |
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科目：小學數(shù)學 來源： 題型：
| 選擇合適的方法計算 3.25×5.69+3.25×3.31+3.25 |
12.5×32×2.5 |
| （200-1456÷26）×24 | 5.4÷（3.94+0.86）×0.8． |
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