Lời giải:
$55\times 17\times 16\times 15=224400$
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Các câu hỏi tương tự
Bài 1: 1) x + 13 212) - 41 + x - 553) x + ( -15 ) ( - 17 ) + ( - 4 )4 ) 3 + x ( - 8 ) + 115 ) x + 37 - 104 + 66) x + ( - 71 ) ( - 55 ) + 857 ) x - ( - 45 ) - 63 + 278) x + 29 43 + ( - 23 )9 ) x + ( - 47 ) ( - 62 ) - 1710 ) x + 21 ( - 43 ) + 4311 ) 31 + x 45 - 8112 ) x - 12 ( - 8 ) + (- 7 )13 ) 23 - x 24 - ( - 16 )14 ) - 15 - ( - 21 - 3x ) - 6315 ) 57 - ( x - 46 ) - 1316 ) -x - 23 -38 - 4217 ) x - ( - 7 ) -4 - 1418 ) 18 - x -8 - ( - 15 )19 ) 45 - ( x + 17 ) - 2620 ) 3. ( x...
Đọc tiếp
Bài 1:
1) x + 13 = 21
2) - 41 + x = - 55
3) x + ( -15 ) = ( - 17 ) + ( - 4 )
4 ) 3 + x = ( - 8 ) + 11
5 ) x + 37 = - 104 + 6
6) x + ( - 71 ) = ( - 55 ) + 85
7 ) x - ( - 45 ) = - 63 + 27
8) x + 29 = 43 + ( - 23 )
9 ) x + ( - 47 ) = ( - 62 ) - 17
10 ) x + 21 = ( - 43 ) + 43
11 ) 31 + x = 45 - 81
12 ) x - 12 = ( - 8 ) + (- 7 )
13 ) 23 - x = 24 - ( - 16 )
14 ) - 15 - ( - 21 - 3x ) = - 63
15 ) 57 - ( x - 46 ) = - 13
16 ) -x - 23 = -38 - 42
17 ) x - ( - 7 ) = -4 - 14
18 ) 18 - x = -8 - ( - 15 )
19 ) 45 - ( x + 17 ) = - 26
20 ) 3. ( x + 5 ) - x - 11 = 24
21 ) 14 - ( x - 7 ) = - 8 - ( - 9 )
22 ) 15 - ( x - 2 ) = - 7 + 8
Đã học về số âm rùi nha
ai nhanh tick choo
a) 25 . 8 - 12 . 5 + 272 : 17 - 8
b) 125 : 25 + 14 - 142 : 71
c) 13 . 17 - 256 : 16 + 14 :7 -1
d) 15 . 24 - 14 . 5 ( 145 : 5 - 27 )
2, Tìm X, biết:
a) 37 + x = 55
b) x - 31 = 24
c) 21 ( x - 11 ) = 21
d) 9 . ( x - 29 ) = 0
e) ( x - 1954 ) . 5 = 50
f) 30 . 60 - x = 30
Tìm x :
g , 2x +15 - x = 16
h , 2x + 15 = - x - 16
i , 2x - 15 = - 11 - ( -16 )
k , x - ( 17 - x ) = x - 7
Tìm x :
g , 2x +15 - x = 16
h , 2x + 15 = - x - 16
i , 2x - 15 = - 11 - ( -16 )
k , x - ( 17 - x ) = x - 7
a)x-17/36=15/16.27/4
b) |x-2/7|+9/14.3/4=1
c)1/5+2/11<x/55<2/5+4/55 (x thuộc Z)
Tìm x biết : 18 .(x-16) = 18
A. x = 15 B. x =16 C. x =17 D. x =18
bài 5 tìm số nguyên x y biết
a1)-12(x-5)+7(3-x)=18
a2)30(x+2)-6(x-5)-23x=100
a3)17-{-x-[-x-(-x)]}=16
a4)x+{(x+3)-[(x+3)-(-x-2)}=x
b1)|x+3|=5
b2)|x-2|+3=15
b3)(x-3)(2y+1)=7
b4)(2x+1)(3y-2)=-55
x-20/11*13-20/13*15-20/15*17-....-20/53*55
tìm x biết a, x + 22/11 + x + 23/12 = x + 24/13 + x + 25/14
b, x - 17/16 + x-16/17 = x-15/18 + x-14/19