Các câu hỏi tương tự
thuc hien cac phep tinh sau ;
2va3/4 . (-0,4)+ 1va3/5 . 1,75 + (-7,2) : 9 / 11
1/8 . 15va2/5 + 1va4/5 . 7/8 - 17va 1/5 . 1/8
-5/7 . 2/11 + (-5) / 7 . 9/11 + 1va5/7
6/5 + 5/8 : 5 - 3/16 . (-2)3
thuc hien phep tinh
( 5*4^15*9-4*3^20*8^9) /( 5*2^9*6^19-7*2^29*27^6)
Thuc hien phep tinh :
a) 4 phan 5 + -7 phan 15 . 1, 25
b) 2 phan 5 + 3 phan 5 . ( 4 1phan2 - 3,25)
Thuc hien phep tinh ) B = 1 - 3 + 5 - 7 + 9 - 11 + ... + 2017 -2019
thực hành phép tính
a. 1\ 2 . ( 2\ 9 + 3\7 - 5\ 27 )
b. ( -5\28 + 1,75 + 8\35 ) : ( -3 9\20 )
c. 70,5 - 538 : 15\2
1) Thuc hien phep tinh:
a) 4^6 × 9^2 / 6^3 × 8^2
b) 5^6 × 15^4 /5^4 × 3^3
c) 3^9 - 2^3 × 3^7 + 2^10 × 3^2 - 2^13 / 3^10 - 2^2 × 3^7 + 2^10 × 3^3 - 2^12
d) (1/9)^10 : (1/3)^20
e) (1/64)^5 × (1/4)^7
2) Chung minh rang:
a)2014^100+2014^99 chia het cho 2015
b) 4^13+32^5-8^8 chia het cho 5
c) 81^27-27^9-9^13 chia het cho 405
Help me!! Pleass!!
cau 1)
-2/3=.../9 5/7=-10/... .../5=-28/20 4/...=-4/3
cau2)
rut gon phan so 23.33phan 24.32 co ket qua la
a)3/2 b) 2/3 c) 3/4 d) 1/6
cau 3 thuc hien cac phep tinh
a) ( 3/8 + -1/4+ 5/1):2/3
b) 2/3.(-4/5+3/7) -2/7
lam minh nha minh dang can gap
cam on cac ban
Bài 1:Thực hiện phép tính
a, 1/2×( 2/9 +3/7 - 5/27)
b, (-5/8 + 1,75 + 8/35) : (-3 9 phần 10(hỗn số)
c, 1/3 × 5/7 - 5/27 × 36/14
khong thuc hien phep tinh hay so sanh A va B
A = 36 x 63 - 27
B = 36 + 63 x 35