6.4÷0.8﹦ 64 64 ÷8; |
20.5÷0.25﹦ 2050 2050 ÷25; |
0.3÷0.12﹦ 30 30 ÷12 12 ; |
2.4÷0.004﹦ 2400 2400 ÷4 4 . |
解:①6.4÷0.8, =(6.4×10)÷(0.8×10), ﹦64÷8; |
②20.5÷0.25, =(20.5×100)÷(0.25×100), =2050÷25; |
③0.3÷0.12, =(0.3×100)÷(0.12×100), ﹦30÷12; |
④2.4÷0.004, =(2.4×1000)÷(0.004×1000), =2400÷4; |
科目:小學(xué)數(shù)學(xué) 來源: 題型:填空題
根據(jù)商不變的規(guī)律填空.
6.4÷0.8﹦________÷8; | 20.5÷0.25﹦________÷25; |
0.3÷0.12﹦________÷________; | 2.4÷0.004﹦________÷________. |
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