(1)45.7-29.25-0.75=________.
(2)2.25×2.25×32=________.
(1)45.7-29.25-0.75=________.(2)2.25×2.25×32=________.
答案:2 悬赏:60 手机版
解决时间 2021-01-03 11:33
- 提问者网友:寂寞撕碎了回忆
- 2021-01-02 18:02
最佳答案
- 五星知识达人网友:何以畏孤独
- 2021-01-02 18:40
解:(1)45.7-29.25-0.75,
=45.7-(29.25+0.75),
=45.7-30,
=15.7;
(2)2.25×2.25×32,
=2.25×2.25×4×4×2,
=2.25×4×(2.25×4)×2,
=9×9×2,
=81×2,
=162.
故
=45.7-(29.25+0.75),
=45.7-30,
=15.7;
(2)2.25×2.25×32,
=2.25×2.25×4×4×2,
=2.25×4×(2.25×4)×2,
=9×9×2,
=81×2,
=162.
故
全部回答
- 1楼网友:不如潦草
- 2021-01-02 19:25
好好学习下
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