问题 解答题
计算下列各题.
50×39÷15

3641-58×24

1300-239-261

145+55×7.
答案

(1)50×39÷15,

=1950÷15,

=130;

(2)3641-58×24,

=3641-1392,

=2249;

(3)1300-239-261,

=1300-(239+261),

=1300-500,

=800;

(4)145+55×7,

=145+385,

=530.

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