1. 901x23簡便方法(脫式)
901x23簡者槐便方法首悄友運猜(脫式)
901x23
=23*(900+1)
=23*900+23*1
=
20723
2. 用簡便方法計算:99x23
3. 999乘23簡便計算
解:
999×23
=(1000-1)×23
=1000×23-1×23
=23000-23
=22977
4. 199✖️23怎麼做最簡便
簡便計算過程方法如下
解:199×23
=(200-1)×23
=200×23-1×23
=4600-23
=4577
5. 23x99x23的簡便運算
23×99×23=23^2×99=(400+2×20×3+9)×99=529×99=529×(100-1)=52900-529=52371
6. 99✘23簡便運算
99x23
=(100-1)x23
=100x23-23
=2300-23
=2277
7. 99x23的簡便計算 是怎樣計謝謝了,大神幫忙啊
99x23 =(100-1)x23 =100x23-23x1 =2300-23 =2277
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