题目内容
简便计算下面各题.
(1)756÷(7×9)
(2)1260÷7÷9.
(1)756÷(7×9)
(2)1260÷7÷9.
(1)756÷(7×9)
=756÷7÷9
=108÷9
=12;
(2)1260÷7÷9
=1260÷(7×9)
=1260÷63
=20.
=756÷7÷9
=108÷9
=12;
(2)1260÷7÷9
=1260÷(7×9)
=1260÷63
=20.
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