Question

5.6x0.38 0.56x4.7 0.05x15

Answer 1

这题不能用简便计算解答
5.6×0.38+0.56×4.7+0.05×15
=5.6×0.38+5.6×0.47+0.05×15
=5.6×(0.38+0.47)+0.075
=5.6×0.85+0.75
=5.51

Answer 2

最后应该是0.056×15吧
统一成5.6
原式=5.6×0.38+5.6×0.47+5.6×0.15
=5.6×(0.38+0.47+0.15)
=5.6×1
=5.6

Answer 3

Answer 4

5.6x0.38 +0.56x4.7+ 0.05x15
解题思路：四则运算规则（按顺序计算、先算乘除后算加减，有括号先算括号，有乘方先算乘方）即脱式运算（递等式计算）需在该原则前提下进行
解题过程：

5.6×0.38+0.56×4.7+0.05×15

=5.6×（0.38+0.47)+0.05×15

=4.76+0.75

=5.51

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