问题 解答题
脱式计算.
(1)240÷2×5
(2)(111-75)×13(3)400-128÷4
(4)(45+54)÷3(5)25×4×15(6)1600-85×12.
答案

(1)240÷2×5,

=120×5,

=600;

(2)(111-75)×13,

=36×13,

=468;

(3)400-128÷4,

=400-32,

=368;

(4)(45+54)÷3,

=99÷3,

=33;

(5)25×4×15,

=100×15,

=1500;

(6)1600-85×12,

=1600-1020,

=580.

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