A. 97乘102用簡便方法運算
97x102
=97x(100+2)
=9700+194
=9894
求採納!!!
B. 102x97有簡便方法嗎
原式
=(100+2)x97
=100x97+2x97
=9700+194
=9894
102x(100-3)
=102x100-102x3
=10200-306
=9894
(100+2)x(100-3)
=100x100-3x100+2x100-2x3
=10000-300+200-6
=9700+200-6
=9900-6
=9894
……
供參考。
C. 97×102簡便計算
97×102簡便計算
97×102
=97*(100+2)
=97*100+97*2
=9700+194
=9894
D. 102×97簡便運算
102×97簡便運算
=(100+2)*(100-3)
=100*100-100*3+2*100-2*3
=100*(100-3+2)-6
=100*99-6
=9900-6
=9894
E. 用簡便演算法97×102
97×102
=97×(100+2)
=97×100+97×2
=9700+194
=9894
F. 102乘97用簡便方法計算
(100+2)*(100-3)
=100*100-100*3+2*100-2*3
=10000-300+200-6
=9894
G. 102乘以97的簡變全法
法一:
102×97
=(100+2)×97
=100×97+2×97
=9700+194
=9894
法二:
102×97
=102x(100-3)
=102x100-102x3
=10200-306
=9894
法三:
102×97
=(100+2)x(100-3)
=100x100-3x100+2x100-2x3
=10000-300+200-6
=9700+200-6
=9900-6
=9894
希望幫到你 望採納 謝謝 加油
H. 102乘97用乘法分配律怎麼算
