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5.48减括号9.4-0.54小括号完了简便运算?
2个回答
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简便计算:
5.48-(9.4-0.54)
=5.48-9.4+0.54
=5.48+0.52+0.02-9.4
=6-9.4+0.02
=-3.4+0.02
=-3.38
5.48-(9.4-0.54)
=5.48-9.4+0.54
=5.48+0.52+0.02-9.4
=6-9.4+0.02
=-3.4+0.02
=-3.38
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