a) 2345 – 1000 : [19 – 2(21 – 18)2]b) 128 – [68 + 8(37 – 35)2] : 4c) 568 – {5[143 – (4 – 1)2] + 10} : 10d) 107 – {38 + [7.32 – 24 : 6+(9 – 7)3]}:15e) 307 – [(180 – 160) : 22 + 9] : 2f) 205 – [1200 – (42 – 2.3)3] : 40g) 177 :[2.(42 – 9) + 32(15 – 10)]h) [(25 – 22.3) + (32.4 + 16)]: 5i) 125(28 + 72) – 25(32.4 + 64)j) 500 – {5[409 – (23.3 – 21)2] + 103} : 15Viết số mũ giùm mình...
Đọc tiếp
a) 2345 – 1000 : [19 – 2(21 – 18)2] b) 128 – [68 + 8(37 – 35)2] : 4 c) 568 – {5[143 – (4 – 1)2] + 10} : 10 d) 107 – {38 + [7.32 – 24 : 6+(9 – 7)3]}:15 e) 307 – [(180 – 160) : 22 + 9] : 2 f) 205 – [1200 – (42 – 2.3)3] : 40 g) 177 :[2.(42 – 9) + 32(15 – 10)] h) [(25 – 22.3) + (32.4 + 16)]: 5 i) 125(28 + 72) – 25(32.4 + 64) j) 500 – {5[409 – (23.3 – 21)2] + 103} : 15 |
Viết số mũ giùm mình ạ!
a: \(=47-\left[\left(45\cdot16-25\cdot12\right):14\right]\)
\(=47-30=17\)
b: \(=50-\left[6+34\right]\)
=50-40
=10