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23 86简便计算

简便计算123 86-23急123 86-23=123-23+86=100+86=186

46*57+23*86=46*57+23*2*43=46*57+46*43=46*(57+43)=46*100=4600

=(46÷2)*(57*2)+23*86 =23*114+23*86 =23*(114+86) =23*200 =4600

46*57+23*86=23*2*57+23*86=23*(2*57+86)=23*(114+86)=23*200=4600

=(86/87)*23=(1-1/87)*23=23-23/87=22又64/87

46*57+23*86 =46*57+23*2*43 46*57+46*43 =46*(57+43) =46*100 =4600

解 46*57+23*86=23*2*57+23*86=23*114+23*86=23*[114+86]=23*200=4600

86+14等于100x23等于2300

46*(57+23) +23*40 =46*80+920 =3680+920 =4600

46Ⅹ57+23x86如何计算简便=46*(57+43)=46*100=4600

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