495÷55+495÷45用简便方法算,没简便的话,用普通的算
问题描述:
495÷55+495÷45用简便方法算,没简便的话,用普通的算
答
495÷55+495÷45
=9+11
=20
495÷55+495÷45用简便方法算,没简便的话,用普通的算
495÷55+495÷45
=9+11
=20