14×(130+45)÷7脱式计算要列式
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发布时间:2024-10-22 02:35
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热心网友
时间:2024-11-26 01:34
(1)130+25×14
=130+25×2×7,
=130+50×7,
=130+350,
=480;
(2)240÷16÷3
=240÷8÷2÷3,
=30÷2÷3,
=5;
(3)825-800÷25
=825-800÷5÷5,
=825-160÷5,
=825-32,
=793;
(4)388-(79-21)
=388+21-79,
=409-79,
=330.
热心网友
时间:2024-11-26 01:38
(1)130+25×14
=130+25×2×7,
=130+50×7,
=130+350,
=480;
(2)240÷16÷3
=240÷8÷2÷3,
=30÷2÷3,
=5;
(3)825-800÷25
=825-800÷5÷5,
=825-160÷5,
=825-32,
=793;
(4)388-(79-21)
=388+21-79,
=409-79,
=330.