题目内容
用递等式计算.
(540-370)×6
504÷9×5
195+305÷5
240÷8÷3.
(540-370)×6
504÷9×5
195+305÷5
240÷8÷3.
(540-370)×6
=170×6,
=1020;
504÷9×5
=56×5,
=280;
195+305÷5
=195+61,
=256;
240÷8÷3
=30÷3,
=10.
=170×6,
=1020;
504÷9×5
=56×5,
=280;
195+305÷5
=195+61,
=256;
240÷8÷3
=30÷3,
=10.
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