79x25十25简便方法
答:图
答:回答:79x25十25=25×(79+1)=25×80=2000
答:79X25十25 =(79+1)×25 =80×25 =2000
答:78x25十25 =(78+1)×25 =79x25 =(80-1)x25 =80x25-25 =2000-25 =1975
答:=(99+1)x25 =100x25 =2500
答:=(99+1)x25 =100x25 =2500
答:99×25+25 =(99+1)x25 =100x25 =2500 这个比较简单的,望采纳
答:39x25十25 39*25+25*1 (39+1)25 40*25=1000
答:77×25-25 24×25的简算 77×25-25+24×25的简算 =(77-1+24)x25 =100x25 =2500 79乘25+22乘25—25 的简便方法 (79+22-1)×25 17×25-25×7怎样简算 17×25-25×7 =(17-7)×25 =10×25 =250 79×25×25-25的算式过程 79×25×25-25 =(80-1)×...
答:原式 =18x3x25+25x1 =54x25+25x1 =(54+1)x25 =55x25 =56x25-1x25 =14x4x25-25 =14x100-25 =1400-25 =1375
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秋仪13428836459:
79X25十25? -
44865江潘
: 运用乘法分配律使计算简便:79*25+25=(79+1)*25=80*25=2000 乘法分配律:两个数相加(或相减)再乘另一个数,等于把这个数分别同两个加数(减数)相乘,再把两个积相加(相减),得数不变.用字母表示:(a+b)x c=axc+bxc
秋仪13428836459:
79乘以25再加25的简便算法 -
44865江潘
: (79+1)*25=80*25=2000
秋仪13428836459:
79*25+25计算 -
44865江潘
: 79*25+25 =(79+1)x25 =80x25 =2000
秋仪13428836459:
79乘以25再加25的简便算法 -
44865江潘
:[答案] (79+1)*25=80*25=2000
秋仪13428836459:
79乘25加25怎么简便 快快 -
44865江潘
: 提取公因式79X25+25=(79+1)X25=80X25=200063x8+91x63+63=63x(8+91+1)=63x100=63001999+999x999=1000+999+999x999=1000+999x(999+1)=1000+999000=1000000360x26+260x64=(100+260)x26+260x64=100x26+260x26+260x64=100x26+260x100=286x100=28600
秋仪13428836459:
79*25 25的简便运算,是什么 -
44865江潘
: 解 是79*25+25?=25*(79+1)=25*80=2000
秋仪13428836459:
79乘25加25怎么简便 快加油63乘8加91乘63加63怎么简便1999加999乘999怎么简便360乘26加260乘64怎么简便 -
44865江潘
:[答案] =(79+1)*25 =80*25 =2000
秋仪13428836459:
79÷25的简便算法 -
44865江潘
: 79÷25 =79÷100*4 =0.79*4 =(0.8-0.01)*4 =3.2-0.04 =3.16
秋仪13428836459:
79x25+79x25 - 25怎么简便运算 -
44865江潘
: 79x25+79x25-25 =25x(79+79-1) =25x157 =157÷4x100 =3925
秋仪13428836459:
79x25+22x25 - 25,用简便运算法. -
44865江潘
: (79+21)*25 =100*25 =2500 如帮到你,请点采纳,谢谢