9.9×1.45,简便用
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9.9×1.45=(10-0.1)×1.45=10×1.45-0.1×1.45=14.5-0.145=14.355
咨询记录 · 回答于2023-04-20
9.9×1.45,简便用
9.9×1.45,简便用?我正在为您解答:
您好!根据目前的题目信息来看,9.9×1.45,简便用?这是一个简单的计算题
9.9×1.45=(10-0.1)×1.45=10×1.45-0.1×1.45=14.5-0.145
9.9×1.45=(10-0.1)×1.45=10×1.45-0.1×1.45=14.5-0.145=14.355
答案:14.3559.9×1.45=(10-0.1)×1.45=10×1.45-0.1×1.45=14.5-0.145=14.355
三点2×2点5×0点八的简便运算
好的
3.2×2.5×0.8=3.2×0.2×4×2.5=3.2×0.2×10=3.2×2=6.4
答案:6.43.2×2.5×0.8=3.2×0.2×4×2.5=3.2×0.2×10=3.2×2=6.4