题目内容
| 根据88×38=3344,写出4个积是3.344的算式. (1) 0.088 0.088 ×38 38 =3.344 |
(2) 88 88 ×0.038 0.038 =3.344 |
| (3) 0.88 0.88 ×3.8 3.8 =3.344 |
(4) 8.8 8.8 ×0.38 0.38 =3.344 |
分析:积的变化规律:一个因数不变,另一个因数扩大或缩小多少倍(0除外),积也会随着扩大或缩小相同的倍数,据此解答即可得到答案.
解答:解:因为88×38=3344,
所以,0.088×38=3.344,
88×0.038=3.344,
0.88×3.8=3.344,
8.8×0.38=3.344,
故答案为:0.088,38;88,0.038;0.88,3.8;8.8,0.38.
所以,0.088×38=3.344,
88×0.038=3.344,
0.88×3.8=3.344,
8.8×0.38=3.344,
故答案为:0.088,38;88,0.038;0.88,3.8;8.8,0.38.
点评:此题考查了积的变化规律的灵活运用.
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