根据794×98=77812填出下面各题的积.①749×0.98=______ ②79.4×980=______③7.94×0.98...
根据794×98=77812填出下面各题的积.①749×0.98=______②79.4×980=______③7.94×0.98=______④79.4×0.098=_...
根据794×98=77812填出下面各题的积.①749×0.98=______ ②79.4×980=______③7.94×0.98=______ ④79.4×0.098=______.
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①749×0.98
=794×(98÷100)
=77812÷100
=778.12;
②79.4×980
=(794÷10)×(98×10)
=77812×1
=77812;
③7.94×0.98
=(794÷100)×(98÷100)
=77812÷10000
=7.7812;
④79.4×0.098
=(794÷10)×(98÷1000)
=77812÷10000
=7.7812
故答案为:778.12,77812,7.7812,7.7812.
=794×(98÷100)
=77812÷100
=778.12;
②79.4×980
=(794÷10)×(98×10)
=77812×1
=77812;
③7.94×0.98
=(794÷100)×(98÷100)
=77812÷10000
=7.7812;
④79.4×0.098
=(794÷10)×(98÷1000)
=77812÷10000
=7.7812
故答案为:778.12,77812,7.7812,7.7812.
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