Trang chủ » Hỏi đáp » Môn Toán a,,369-(206-15)-(-206+369) b,345-150:[(3^3-24)^2-(-21)]+2016^0 c,(-125).32.(-17).(-1)^100 d,127-45-(-273)+1145 26/04/2024 a,,369-(206-15)-(-206+369) b,345-150:[(3^3-24)^2-(-21)]+2016^0 c,(-125).32.(-17).(-1)^100 d,127-45-(-273)+1145
a)369-(206-15)-(-206+369) =369-206+15+206-369 =(369-369)+(206-206)+15 =0+0+15 =15 b)345-150:[(3^3-24)^2-(-21)]+2016^0 =345-150:[(27-24)^2+21]+1 =345+1-150:(3^2+21) =346-150:(9+21) =346-150:30 =346-5 =341 c)(-125).32.(-17).(-1)^100 =(-125).8.4.(-17).1 =[(-125).8].[4.(-17)] =(-1000).(-68) =68000 d)127-45-(-273)+1145 =127-45+273+1145 =(127+273)+(1145-45) =400+1100 =1500 Trả lời
a)369-(206-15)-(-206+369) =369-206+15+206-369 =(369-369)+(-206+206)+15 =15 b)345-150:[(3^3-24)^2-(-21)]+2016^0 =345-150:[(27-24)^2+21]+1 =346-150:[9+21] =346-150:30 =346-5 =341 c)(-125).32.(-17).(-1)^100 =(-125).32.(-17).1 =(-4000).(-17) =68000 d)127-45-(-273)+1145 =126-45+273+1145 =(-45+1145)+126+273 =1100+126+273 =1499 Trả lời
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