问题 解答题
脱式计算.
25×(700-684)
137+21×35162÷9×43428÷4×5.
答案

(1)25×(700-684),

=25×16,

=400;

(2)137+21×35,

=137+735,

=872;

(3)162÷9×43,

=18×43,

=774;

(4)428÷4×5,

=107×5,

=535.

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