作业帮24点运算①8,2,1,-3②1,-7,-1,-10③2,3,-9,-6
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24点运算①8,2,1,-3②1,-7,-1,-10③2,3,-9,-6
24点运算①8,2,1,-3②1,-7,-1,-10③2,3,-9,-6
24点运算①8,2,1,-3②1,-7,-1,-10③2,3,-9,-6
①
(-3)×(1-2)×8=24
②
(-1-1)×(-7)-(-10)=(-2)×(-7)+10=14+10=24
③
(-6)÷2-(-9)×3=-3+27=24
(8-2)×[1-(-3)]=24
(-1-1)×(-7)-(-10)=24
(-6-2)×(-9)÷3=24
1；2X{8+1-(-3)}
2；(-1-1)X(-7)-(-10)
3；(-9+3)X(-6+2)
①8，2，1，-3
（8-2）×[1-(-3)]
=6×4
=24
②1，-7，-1，-10
[(-1)-1]×(-7)-(-10)
=(-2)×(-7)-(-10)
=14+10
=24
③2，3，-9，-6
[2+3+(-9)]×(-6)
=(-4)×(-6)
=24