32X6x4.5X1-(-1)简便计算?
发布网友
共2个回答
热心网友
32x6x4.5x1-(-1)
=32x6x4.5x1
=32x27
=(30+2)(30-3)
=900+60-90-6
=960-96
=8
热心网友
32X6x4.5X1-(-1)
=32x6x4.5+1
=32x3x2x4.5+1
=32x3x9+1
=96x9+1
=8+1
=865
