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火眼金睛辩对错,并且改正.(1)21.32-(6.32+8.3)=21.32-6.32+8.3=15+8.3=23.3.(判断对错)改正:.(2)12.45-1.35-0.65=12.45-(1.35+0.65)=12.45-2=10.45.(判断对错

题目详情
火眼金睛辩对错,并且改正.
(1)21.32-(6.32+8.3)
=21.32-6.32+8.3                                  
=15+8.3  
=23.3___.(判断对错)改正:___.
(2)12.45-1.35-0.65
=12.45-(1.35+0.65)
=12.45-2
=10.45___.(判断对错)改正:___.
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答案和解析
(1)21.32-(6.32+8.3)=21.32-6.32+8.3                           ...