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0.26×5.5+2.6×0.45===简便计算

题目详情
0.26×5.5+2.6×0.45 = = = 简便计算
▼优质解答
答案和解析
=2.6×0.55+2.6×0.45
=2.6×(0.55+0.45)
=2.6×1
2.6