1260÷42用简便方法计算
问题描述:
1260÷42用简便方法计算
答
=1260÷(6X7)
=1260÷6÷7
=210÷7
=30
1260÷42用简便方法计算
=1260÷(6X7)
=1260÷6÷7
=210÷7
=30