102×23+102×7=102×(23+7)-|||-125×(8+4)=125×8+125×4
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您好，102×23+102×7= 2,346102×(23+7) = 102×30 = 3,060125×(8+4) = 1,875125×8+125×4 = 1,000+500 = 1,500So, the equation becomes:2,346 - ||| - 1,875 = 1,500Solving for |||, we get:||| = 2,346 -
咨询记录 · 回答于2023-03-13
102×23+102×7=102×(23+7)-|||-125×(8+4)=125×8+125×4
102×23+102×7=102×(23+7)-|||-125×(8+4)=125×8+125×4乘法运算律
您好，102×23+102×7= 2,346102×(23+7) = 102×30 = 3,060125×(8+4) = 1,875125×8+125×4 = 1,000+500 = 1,500So, the equation becomes:2,346 - ||| - 1,875 = 1,500Solving for |||, we get:||| = 2,346 -
这里使用了乘法运算律，即：a×(b+c) = a×b + a×c和a×b + a×c = a×(b+c)这些规则可以帮助我们简化和重写数学表达式，使得它们更易于计算或解决。
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