
2个回答
展开全部
440.42
解析:
“凑5“或直接计算
185.07-15.3+94.3+162.78-110.52+124.09
=185-15+95+160-110+125
+(0.07-0.3-0.7+2.78-0.52-0.91)
=440+(2.85-1-0.52-0.91)
=440+(2.85-2.43)
=440+0.42
=440.42
解析:
“凑5“或直接计算
185.07-15.3+94.3+162.78-110.52+124.09
=185-15+95+160-110+125
+(0.07-0.3-0.7+2.78-0.52-0.91)
=440+(2.85-1-0.52-0.91)
=440+(2.85-2.43)
=440+0.42
=440.42
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