a) (1/3)50 . (-9)25 .2/3:4
= (1/3)50 . [-(3)50] . 2/3 . 1/4
= - (1/3.3)50 . 1/6
= -1 . 1/6 = -1/6
b) (24.26)/(25)2 - (25.153)/(63.102)
= 210/210 - (25.33.53)/(23.33.22.52)
= 1- (25.33.53)/(25.33.52)
= 1- 5
= -4
Thực hiện phép tính:
a) A=\(\left(-\frac{3}{4}+\frac{2}{3}\right):\frac{5}{11}\) b)B=\(\left(-\frac{2}{3}+1\right)-\left(\frac{7}{5}-0,2\right)+\left(\frac{7}{15}-1+\frac{4}{3}\right)\)
c) C=\(\frac{^{^{2^4.2^6}}}{\left(2^5\right)^2}-\frac{2^5.15^3}{6^3.10^2}\)
Thực hiện phép tính (Tính hợp lý nếu có thể)
g) \(\frac{3}{5}:\left(\frac{-1}{15}-\frac{1}{6}\right)+\frac{3}{5}:\left(\frac{-1}{3}-1\frac{1}{15}\right)\)
h) \(10.\sqrt{0,01}.\sqrt{\frac{16}{9}+3\sqrt{49}-\frac{1}{6}\sqrt{4}}\)
i) \(\frac{2^4.2^6}{\left(2^5\right)^2}-\frac{2^5.15^3}{6^3.10^2}\)
k) \((2\frac{1}{3}+3\frac{1}{2}):\left(-4\frac{1}{6}+3\frac{1}{7}\right)+7\frac{1}{2}\)
n) \(4\frac{25}{16}+25\left(\frac{9}{16}:\frac{125}{64}\right):\frac{-27}{8}\)
m) \([1,5+2\frac{1}{2}-\left(2\sqrt{2}\right)^2]:[4\frac{1}{2}-\sqrt{1,96}+0,9]\)
o) \(\frac{5}{21}.\left(4\frac{1}{5}.7\frac{3}{4}+5\frac{1}{4}.4,2\right)\)
p) \(\left(\frac{2}{5}+\frac{2}{7}-\frac{2}{11}\right):\left(\frac{3}{7}-\frac{3}{11}+\frac{3}{5}\right)\)
Làm nhanh làm đúng mình Tick nha :))
Tính.
1, ( 1 + \(\frac{2}{3}\)- \(\frac{1}{4}\)) . ( 0,8 - \(\frac{3}{4}\))2
2, \(\left(\frac{1}{3}\right)^{50}\). 925 - \(\frac{2}{3}\): 4
3. \(\frac{2^4.2^6}{\left(2^5\right)^2}\)- \(\frac{2^5.15^3}{6^3.10^2}\)
1) \(\frac{2^4.2^6}{\left(2^5\right)^2}-\frac{2^5.15^3}{6^3.10^2}\)
Thực hiện phép tính:
a,\(16\frac{2}{7}:\left(\frac{-3}{5}\right)+28\frac{2}{7}:\frac{3}{5}\)
b,\(\left(2^2:\frac{4}{3}-\frac{1}{2}\right)\cdot\frac{6}{5}-17\)
c,\(\left(\frac{1}{3}\right)^{50}.\left(-9\right)^{25}-\frac{2}{3}:4\)
\(\frac{2^4.2^6}{\left(2^5\right)^2}-\frac{2^5.15^3}{6^3.10^2}\)
\(\frac{2^4.2^6}{\left(2^5\right)^2}\)-\(\frac{2^5.15^3}{6^3.10^2}\)
Thực hiện phép tính: E =\(\frac{0,8:\left(\frac{4}{5}.1,25\right)}{0,64-\frac{1}{25}}+\frac{\left(1,08-\frac{2}{25}\right):\frac{4}{7}}{\left(6\frac{5}{9}-3\frac{1}{4}\right).2\frac{2}{17}}\)+ (1,2 . 0,5 ) : \(\frac{4}{5}\)
BÀi 1: Thực hiện phép tính ( tính nhanh nếu có thể)
a.\(\left(-\frac{1}{2}\right)-\left(-\frac{3}{5}\right)+\left(-\frac{1}{9}\right)+\frac{1}{71}-\left(-\frac{2}{7}\right)+\frac{4}{35}-\frac{7}{18}\)
b.\(\left(3-\frac{1}{4}+\frac{2}{3}\right)-\left(5-\frac{1}{3}-\frac{6}{5}\right)-\left(6-\frac{7}{4}+\frac{3}{2}\right)\)
c.\(\frac{3}{5}:\left(\frac{-1}{15}-\frac{1}{6}\right)+\frac{3}{5}:\left(\frac{1}{3}-1\frac{1}{15}\right)\)
