270乘以450除以30简便运算四年级
问题描述:
270乘以450除以30简便运算四年级
答
270×450÷30
=270÷30×450
=90×450
=4050
270乘以450除以30简便运算四年级
270×450÷30
=270÷30×450
=90×450
=4050