[1104-(25×8+40)]÷9+3^16÷3^12+17^0
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29 tháng 10 2016
A = [1104 - (25 . 8 + 40)] . 9 + 316 : 312 + 170 = [1104 - (200 + 40)] . 9 + 316-12 + 1 = (1104 - 240) . 9 + 34 + 1
= 864 . 9 + 81 + 1 = 7776 + 82 = 7858
13 tháng 12 2017
A= [1104 - (25.8+40)]:9+3^16.3^12+17^0
= [1104 - (200+40)] : 9 +316-12+1
=[1104-240] : 9 + 34+1
=864 :9 + 81 +1
=96+81+1
178
30 tháng 10 2018
[545 - (45 + 4 x 25)] : 50 - 200 : 250 + 215 : 213
= [545 - (45 + 100)] : 50 - 200 : 250 + 22
= (545 - 4500) : 50 - 200 : 254
= (-3955) : 50 + 200 : 254
= [(-3955) + 200] : (50 + 254)
= (-3755) : 304
= bạn tự tính nha
[504 - (25 x 8 + 70)] : 9 - 15 + 190
= [504 - (200 + 70)] : 9 - 15 + 0
= (504 - 270) : 9 - 15
= 234 : 9 - 15
= 26 - 15
= 9
5 x {26 - [3 x 5 + 2 x 5 + 15] : 15}
= 5 x {26 - [(3 + 2) x 5) + 15] : 15}
= 5 x {26 - [5 x 5 + 15] : 15}
= 5 x [26 - (25 + 15) : 15]
= 5 x (26 + 25 - 15 : 15)
= 5 x (51 - 1)
= 5 x 50 = 250
d) [1104 - (25 x 8 + 40)] : 9 + 316 : 312
= [1104 - (200 + 40)] : 9 + 34
= (1104 - 240) : 9 + 81
= 864 : 9 + 81
= 96 + 81
= 177
Học tốt!!!
SK
2
4 tháng 11 2016
[1104-(200+40)]:9+316-12
=[1104-240]:9+34
=864:9+81
=96+81
=177
12 tháng 7 2023
\(-\dfrac{3}{16}+-\dfrac{3}{8}-\dfrac{5}{4}\)
\(=-\dfrac{3}{16}-\dfrac{3}{8}-\dfrac{5}{4}\)
\(=-\dfrac{3}{16}-\dfrac{6}{16}-\dfrac{20}{16}\)
\(=\dfrac{-3-6-20}{16}\)
\(=-\dfrac{29}{16}\)
\(\left(-\dfrac{25}{13}\right)+\dfrac{-9}{17}+\dfrac{12}{13}+\dfrac{25}{17}\)
\(=\left[\left(-\dfrac{25}{13}\right)+\dfrac{12}{13}\right]+\left[\left(-\dfrac{9}{17}+\dfrac{25}{17}\right)\right]\)
\(=-\dfrac{13}{13}+\dfrac{17}{17}\)
\(=-1+1\)
\(=0\)
10 tháng 8 2018
=\(\left[1104-\left(200+40\right)\right]:9+3^{16-12}\)
=\(\left[1104-240\right]:9+3^4\)
=\(864:9+3^4\)
=\(96+81\)
=177
nhớ k cho mình nha
T
22 tháng 8 2023
\(1)\)\(-\dfrac{10}{11}.\dfrac{8}{9}+\dfrac{7}{18}.\dfrac{10}{11}\)
\(=\dfrac{10}{11}\left(-\dfrac{8}{9}+\dfrac{7}{18}\right)\)
\(=\dfrac{10}{11}\left(\dfrac{-16}{18}+\dfrac{7}{18}\right)\)
\(=\dfrac{10}{11}.\left(-\dfrac{1}{2}\right)=-\dfrac{5}{11}\)
\(2)\)\(\dfrac{12}{25}.\dfrac{23}{7}-\dfrac{12}{7}.\dfrac{13}{25}\)
\(=\dfrac{12}{7}.\dfrac{23}{25}-\dfrac{12}{7}.\dfrac{13}{25}\)
\(=\dfrac{12}{7}.\left(\dfrac{23}{25}-\dfrac{13}{25}\right)\)
\(=\dfrac{12}{7}.\dfrac{2}{5}=\dfrac{24}{35}\)
\(3)\)\(\dfrac{3}{7}.\dfrac{16}{15}-\dfrac{2}{15}.\dfrac{-3}{7}\)
\(=\dfrac{3}{7}.\dfrac{16}{15}-\dfrac{3}{7}.\dfrac{-2}{15}\)
\(=\dfrac{3}{7}.\left(\dfrac{16}{15}+\dfrac{2}{15}\right)\)
\(=\dfrac{3}{7}.\dfrac{18}{15}=\dfrac{18}{35}\)
\(4)\)\(-\dfrac{4}{13}.\dfrac{5}{17}+\dfrac{-12}{13}.\dfrac{4}{17}\)
\(=-\dfrac{4}{13}.\dfrac{5}{17}+\dfrac{-4}{13}.\dfrac{12}{17}\)
\(=-\dfrac{4}{13}.\left(\dfrac{5}{17}+\dfrac{12}{17}\right)\)
\(=-\dfrac{4}{13}.\dfrac{17}{17}=-\dfrac{4}{13}\)
22 tháng 8 2023
`#040911`
`1)`
`-10/11 * 8/9 + 7/18 . 10/11`
`= 10/11 * (-8/9 + 7/18)`
`= 10/11 * (-1/2)`
`= -5/11`
`2)`
`12/25 * 23/7 - 12/7 *13/25`
`= 12/7 * 23/25 - 12/7 * 13/25`
`= 12/7 * (23/25 - 13/25)`
`= 12/7 * 2/5`
`= 24/35`
`3)`
`3/7 * 16/15 - 2/15 * (-3)/7`
`= 3/7 * (16/15 + 2/15)`
`= 3/7 * 6/5`
`= 18/35`
`4)`
`-4/13 * 5/17 + (-12)/13 * 4/17`
`= -4/17 * 5/13 + (-12)/13 * 4/17`
`= 4/17 * (-5/13 - 12/13)`
`= 4/17 * (-17)/13`
`= -4/13`
[1104-(25×8+40)]÷9+3^16÷3^12+17^0=178
\(\frac{1104-\left(25\cdot8+40\right)}{9}+\frac{3^{16}}{3^{12}}+17^0=\frac{1104-\left(200+40\right)}{9}+3^4+1\)
\(=\frac{1104-240}{9}+81+1\)
\(=\frac{864}{9}+82=96+82=178\)