题目内容
列竖式计算
| 8.32×2.5 | 7.45÷3.8(商保留2位小数) | X×72=4896 |
| 1134÷X=27 | X÷9=360. |
(1)8.32×2.5=20.8;
8.3 2
×2.5
16 6 4
(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.
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.
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