问题 解答题

根据运算顺序计算

700+900÷15×6

1450÷[2×(16+9)]

420+80÷(375-355)

答案

(1)700+900÷15×6

=700+60×6

=700+360

=1060;

(2)1450÷[2×(16+9)]

=1450÷[2×25]

=1450÷50

=29;

(3)420+80÷(375-355)

=420+80÷20

=420+4

=424.

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