1. 一道簡便運算:98乘125=急!!!!!!!!!!!
98*125
=(100-2)*5*100/4
=(100*5/4-2*5/4)*100
=(125-2.5)*100
=122.5*100
=12250
2. (98x125)x8的簡便計算
原式=125x8x98
=1000x98
=9800
3. 125乘98簡便方法計算
125乘98簡便方法計算
=125x(100-2)
=125x100-125x2
=12500-250
=12250
4. 98x125(巧算)
98x125=(98+2)x125-2x125=100x125-250=12500-250
=12250.
5. 125×98簡便運算
125×98
=125×(100-2)
=12500-250
=12250
6. 88乘以125用簡便計算怎麼計算
可以考慮分解因數,然後讓某些因數相乘成為10,100,1000,然後再與別外的數相乘,所以有:
88×125=11x(8x125)=11x1000=11000
98x125演算法:
原式=(100-2)x125
=100x125-2x125
=12500-250
=12250
7. 98x125用簡便方法計算
原式
=(100-2)x125
=100x125-2x125
=12500-250
=12250
或者
=(96+2)x125
=96x125+2x125
=12x8x125+250
=12x1000+250
=12000+250
=12250
供參考。
8. 98x125怎樣簡算
(100-2)乘125=12500-250=12250
9. 125乘98簡便計算
125×98
=125×(100-2)
=125×100-125×2
=12500-250
=12250
10. 98×125簡便方法,還等於1200
=125×100-125×2
=12500-250
=12250