问题 解答题
用递等式计算.
560÷10÷7
32×15+78
450-12×1118×5×9
24×12÷6320+70×4.
答案

(1)560÷10÷7,

=56÷7,

=8;

(2)32×15+78,

=480+78,

=558;

(3)450-12×11,

=450-132,

=318;

(4)18×5×9,

=90×9,

=810;

(5)24×12÷6,

=24×(12÷6),

=24×2,

=48;

(6)320+70×4,

=320+280,

=600.

名词解释
填空题