Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
a) 3 3 .3 4 : 3 2 = 3 5
b) 5 16 : 5 14 .4 = 5 2 .4 = 100
c) 58.75 + 58.25 − 2 3 .10 2 = 58.100 − 800 = 5000
a: \(\dfrac{25\cdot9-25\cdot17}{-8\cdot80-8\cdot10}=\dfrac{25\cdot\left(-8\right)}{-8\cdot90}=\dfrac{25}{90}=\dfrac{5}{18}=\dfrac{125}{450}\)
\(\dfrac{48\cdot12-48\cdot15}{-3\cdot270-3\cdot30}=\dfrac{48\left(12-15\right)}{-3\left(270+30\right)}=\dfrac{48}{300}=\dfrac{4}{25}=\dfrac{72}{450}\)
b: \(\dfrac{2^5\cdot7+2^5}{2^5\cdot5^2-2^5\cdot3}=\dfrac{2^5\cdot8}{2^5\cdot22}=\dfrac{8}{22}=\dfrac{4}{11}=\dfrac{28}{77}\)
\(\dfrac{3^4\cdot5-3^6}{3^4\cdot13+3^4}=\dfrac{5-3^2}{13+1}=\dfrac{-4}{14}=\dfrac{-2}{7}=\dfrac{-22}{77}\)
A. = 64.(4.9)+(32.2).137-(8.8).73
= 64.36+64.137-64.73
= 64.( 36+137-73)
= 64.100
= 6400
B. = 16.(3.13)+(2.8).150-(4.4).(62.3)
= 16.39+16.150-16.186
= 16.(39+150-186)
=16.3
= 48
C. =49.62+38.73+(31.2).51+(19.2).27
=49.62+38.73+62.51+38.27
= 62.(49+51)+38.(73+27)
= 62.100+38.100
=100.(62+38)
=100.100
=10000
(x + x +.....+ x) +(1 + 2 +....+ 100)
100x + 5050=5750
100x=5750-5050=700
x=700:100=7
Vậy x = 7
(x+1)+(x+2)+(x+3)+.....+(x+100)=x+1+x+2+x+3+...+x+100=1+2+3+...100+100x=5050+100x=5750
100x=5750-5050=700
x=700/100=7
x=7
\(97.99\\ =97.\left(100-1\right)\\ =9700-97\\ =9603.\)
cái phép tính em đưa ra nó bằng 19675
\(=35.9.65-8.100\)
\(=35.9.65-800\)
\(=20475-800=19675\)