Question

128*32-32+33*71简便计算

Answer 1

128×32-32+33×71
=128×32+(32+1)×71-32
=128×32+32×71+1×71-32
=128×32+32×71+32+39-32
=(128+71+1)×32+(39-32)
=200×32+7
=6400+7
=6407