问题 填空题

计算:21.49+52.37-0.4+5.51-11.37-6.6=______.

答案

21.49+52.37-0.4+5.51-11.37-6.6,

=(21.49+5.51)+(52.37-11.37)-(0.4+6.6),

=27+41-7,

=(27-7)+41,

=10+41,

=61.

故答案为:61.

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