199又1/2×98+202×199.5等于多少

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/07 09:26:20

199又1/2×98+202×199.5等于多少
199又1/2×98+202×199.5等于多少

199又1/2×98+202×199.5等于多少
199又1/2×98+202×199.5
=199.5×98+202×199.5
=(98+202)×199.5
=300×(200-0.5)
=300×200-300×0.5
=60000-150
=59850

59850