273 x 345= (33)3 x 345 = 33.3 x 345 = 39 x 345 = 39+45 = 354.
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Chuyển vế rồi tính
45-3*(x+5)=(-27)-2*(4-x)
(-53)+3*(-x-5)=(-5)*(4-x)
27-(3+x)-3x=45-2*(x+5)
Tính nhanh
\(\frac{3}{5}\times\frac{8}{27}\times\frac{5}{3}\)
\(\frac{7}{19}\times\frac{1}{3}+\frac{7}{19}\times\frac{2}{3}\)
\(\frac{12}{5}\times4-4\times\frac{7}{5}\)
\(C=\dfrac{5\times4^6\times9^4-3^9\times\left(-8\right)^4}{4\times2^{13}\times3^8+2\times8^4\times\left(-27\right)^3}\)
tính
a,2mũ3.3mũ3.5mũ3.7.8 phần 3.(-2)mũ4. 5mũ3 . 14
b,95.(45-27)-45.(95-27)
9 tháng 1 2023 lúc 18:20
411x−1325411x−1325 h)
Đọc tiếp
1) 73 – (2 – 9) 2) (–45) + 27 – 8 3) 27 – 52 + (–18) 4) (–4) . (–12) 5) (–36) : 9 6) (–14) : (–7) 7) 24 : (–8) . (–15) ...
Đọc tiếp
1) 73 – (2 – 9) 2) (–45) + 27 – 8 3) 27 – 52 + (–18)
4) (–4) . (–12) 5) (–36) : 9 6) (–14) : (–7)
7) 24 : (–8) . (–15) 8) (–54) – (–6) . 5 + 9 9) (–2) . 25 + 54 : (–3)3
10) (35 – 28) . (–17 + 12)2 11) –400 : (–3 – 7)2 + 9 12) (–5)2 . (–2) + 48 : (–4)2 13) (–10) + 54 : [(–3)2 . (–4) + (14 – 17)2] 14) (–60) : [11 + (6 – 9)2] 15) –70 : {46 – [12 + 5 . (–32 : 16)2]} – 20210
3/x= 11y/55=-27/45
tính nhanh cho mn
\(3+\dfrac{4}{9}\times\dfrac{7}{25}\times\dfrac{27}{12}\times3\dfrac{4}{7}-\dfrac{7}{25}\)
3 mũ 6 × 45 mũ 4 - 15 mũ 13 x 5 mũ -9/27 mũ 4× 25 mũ 3 + 45 mũ 6