66*22+44*67
问题描述:
66*22+44*67
答
=33*44+67*44=(33+67)*44=100*44=4400
答
=(33+67) 乘以44 =4400
答
66*22+44*67
=22×66+22×134
=22×(66+134)
=22×200
=4400