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简算,谁会谁答,36.8×55+3.68×4506.9×25.8+0.31×258======

题目详情
简算,谁会谁答,
36.8×55+3.68×450 6.9×25.8+0.31×258
= =
= =
= =
▼优质解答
答案和解析
3.68x(550+450)=3.68x1000=3680
25.8x(6.9+3.1)=25.8x10=258