用4,5,6,7算24点在以下的算式中,通过加法和乘法,是可以计算得24的:4x(5-6+7)=24,4x((5-6)+7)=24,4x(5-(6-7))=24,4x(5+7-6)=24,4x((5+7)-6)=24。4x(5+(7-6))=24,4x(7+5-6)=24,4x((7+5)-6)=24,4x(7+(5-6))=24,4x(7-6+5)=24,4x((7-6)+5)=24,4x(7-(6-5))=24,(5-6+7)x4=24,((5-6)+7)x4=24,(5-(6-7))x4=24,(5+7-6)x4=24,((5+7)-6)x4=24,(5+(7-6))x4=24,(5+7