题目内容
脱式计算
| (38-20)×26 | 35÷5×7-5 | 378+320÷8-300 | 390÷(21÷3+2) |
(1)(38-20)×26,
=18×26,
=468;
(2)35÷5×7-5,
=7×7-5,
=49-5,
=44;
(3)378+320÷8-300,
=378+40-300,
=418-300,
=118;
(4)390÷(21÷3+2),
=390÷(7+2),
=390÷9,
=43
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