Các câu hỏi tương tự
Thuc hien phep tinh :
a) { 23 . 30 - [ 76 - ( 9 -3 )2 ]} : 50
b) Viet tich sau duoi dang mot luy thua :
x3 . x4 . x5 ....x49 . x50
thuc hien phep tinh bang cach hop li neu co the 30-[50-(9-4)2]+20150
1..tinh nhanh
22-(-23)-23.78
b) -83.36+17.(-36)
c) 30.(18-39)-39.(30-18)
2...thuc hien phep tinh
a) [18-(-21)+(-9)]-13
b)125-139+200-(-75)
c) (-33)-(-12)-4
d) 22+(-31)-32+50
giup mk xiu nha mk tick cho
thuc hien phep tinh:
a, 5+(-2)+(18-23)+2
b, |-6|:(-3)-43+(-2)².11
THUC HIEN PHEP TINH ( TINH NHANH NEU CO THE ) :
1) ( 56 x 46 - 25 x 23 ) : 23
2) ( 28 x 54 + 56 x 36 ) : 21 : 2
3) ( 76 x 34 - 19 x 64 ) : ( 38 x 9 )
4) ( 2 + 4 + 6 + .... + 100 ) x ( 36 x 333 - 108 x 111 )
5) ( 5x 411 - 3 x 165 ) : 410
6) 7256 x 4375 - 725
3650 + 4375 x 7255
1,thuc hien phep tinh hop li
a,187+[923-(923+887)]
B, 39.187+30^2-78.39
giup minh giai nhung thuc hien phe tinh nha
1..thuc hien phep tinh
a) [18-(-21)+(-9)]-13
b)125-139+200-(-75)
c) (-33)-(-12)-4
d) 22+(-31)-32+50
\(\frac{9+\frac{9}{11}+\frac{18}{23}-\frac{27}{37}}{8+\frac{8}{11}+\frac{16}{23}-\frac{24}{37}}-\frac{2+\frac{16}{29}-\frac{24}{13}-\frac{32}{11}}{3+\frac{24}{29}-\frac{36}{13}-\frac{48}{11}}\)
Thuc hien phep tinh
Thuc hien phep tinh ) B = 1 - 3 + 5 - 7 + 9 - 11 + ... + 2017 -2019