32×25+32×74+32
=32*(25+74+1) ...............乘法分配律
=32*100
=3200
32×25+32×74+32
=32*(25+74+1)
=32*100
=3200
用提取32
计算器
32*25+32*74+32 = 3 200
原式=32x25+32x74+32x1
=32x(25+74+1)
=32x100
=3200
32×25+32×74+32=(25+74+1)×32=100×32=3200