问题
填空题
把下面算式改成除数是整数的除法算式.
①12.3÷3.9=______÷______
②47.8÷0.54=______÷______.
答案
①12.3÷3.9,
=(12.3×10)÷(3.9×10),
=123÷39;
②47.8÷0.54,
=(47.8×100)÷(0.54×100),
=4780÷54;
故答案为,123,39,4780,54.
把下面算式改成除数是整数的除法算式.
①12.3÷3.9=______÷______
②47.8÷0.54=______÷______.
①12.3÷3.9,
=(12.3×10)÷(3.9×10),
=123÷39;
②47.8÷0.54,
=(47.8×100)÷(0.54×100),
=4780÷54;
故答案为,123,39,4780,54.