
简便计算9.08-2.39+1.92-7.61和4.27-0.56-0.27-0.44?
2个回答
展开全部
9.08-2.39+1.92-7.61
=(9.08+1.92)-(2.39+7.61)
=11-10
=1
4.27-0.56-0.27-0.44
=(4.27-0.27)-(0.56+0.44)
=4-1
=3
=(9.08+1.92)-(2.39+7.61)
=11-10
=1
4.27-0.56-0.27-0.44
=(4.27-0.27)-(0.56+0.44)
=4-1
=3
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