试题:
脱式计算
①190+360÷24×8  ②(140+60)×(26-8)③78×7+828÷18     ④(359-42)×53+64.

答案:

我来补答
①190+360÷24×8,
=190+15×8,
=190+120,
=310;

②(140+60)×(26-8),
=200×18,
=3600;

③78×7+828÷18,
=546+46,
=592;

④(359-42)×53+64,
=317×53+64,
=16801+64,
=16865.
 
 
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