93.7 5.55-1.8 +4.45-1.9 简算

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93.75.55-1.8+4.45-1.9简算93.75.55-1.8+4.45-1.9简算93.75.55-1.8+4.45-1.9简算93.7+5.55-1.8+4.45-1.9=93.7-(1.

93.7 5.55-1.8 +4.45-1.9 简算
93.7 5.55-1.8 +4.45-1.9 简算

93.7 5.55-1.8 +4.45-1.9 简算
93.7+5.55-1.8 +4.45-1.9
=93.7-(1.8-1.9)+(5.55+4.45)
=93.7-3.7+10
=90+10
=100

93.7 -5.55-1.8 +4.45-1.9
=93.7 +(5.55+4.45)-(1.8 +1.9)
=93.7-3.7+10
=90+10
=100

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