2.6+2.4x3.3.5X5.92+4.08X3.5.简便
1个回答
2.6+2.4x3
=2.6+7.2
=9.8 3.5X5.92+4.08X3.5
=(5.92+4.08)x3.5
=10x3.5
=35
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