问题
解答题
列竖式计算
|
答案
(1)8.32×2.5=20.8;
8.3 2
×2.5
. 4160
16 6 4
. 20.800
(2)7.45÷3.8≈1.70;
(3)X×72=4896,
X×72÷72=4896÷72,
X=68;
(4)1134÷X=27,
1134÷X×X=27×X,
27×X÷27=1134÷27,
X=42;
(5)X÷9=360,
X÷9×9=360×9,
X=3240.