42÷28怎么简算?
问题描述:
42÷28怎么简算?
答
42÷28
=42÷(7×4)
=42÷7÷4
=6÷4
=1·5
42÷28怎么简算?
42÷28
=42÷(7×4)
=42÷7÷4
=6÷4
=1·5