`58 xx 42 + 32 xx 8 + 5 xx 16`
`=58×42+16×2×8+5×16`
`=58×2×21+16×(2×8+5)`
`=116×21+16×21`
`=21×(116+16)`
`=21×132`
`=2772 `
`58 xx 42 + 32 xx 8 + 5 xx 16`
`=58×42+16×2×8+5×16`
`=58×2×21+16×(2×8+5)`
`=116×21+16×21`
`=21×(116+16)`
`=21×132`
`=2772 `
tính nhanh 58 x 42+ 32 x 8 + 5 x 16
Tính nhanh ;
58 x 42 + 32 x 8 + 5 x 16
Tìm x biết
d) 32%-0,25:x=-17/5
e)(x+1/5)^2+17/25=26/25
f)-32/27-(3x-7/9)^3=-24/27
g)60%x+0,4x+x:3=2
h)|20/9-x|=1/12+1/20+1/30+1/42+1/56+1/72
i)8/5+(2/7+2/17+2/37/5/7+5/17+5/37).x=16/5
Lưu ý: câu i 2/7+2/17+2/37 phần(vế trên) 5/7+5/17+5/37(vế dưới)
58 x 32 + 32 x 8 + 16 x 5
Tính Nhanh:
48 x 4 x 2 + 42 x 8 + 5 x 16
trả lời nhanh giúp mình với:
7 * x - 8. 713
720 : [41 - 2 * x - 5] = 8 * 5
88 - 3 * (7 + x) = 64
[(x * 32) - 17 ] x 2 = 42
a) ( x - 25 ) - 110 = 0
b) 124 + ( 118 - x ) = 142
c) 124 - ( 3x + 22 ) = 42
d) x - 32 : 16 = 18
e ) ( x - 32 ) : 16 = 18
f) 294 : ( 19 - 2.x ) = 42
tính va tim x:
a,36.72-36.67
b,{296:[78-(579-30.7):9]}.18
c,3x-5=16
d,42-2.(32-2x+1)=10
GIUP MINH
Tinh gia tri cua phan so: A= 2 x 3 + 2 x 4 x 8 + 4 x 8 x 16 + 8 x 16 x 32/ 3x 4 + 2 x 6 x 8 + 4 x 12 x 16 + 8 x 24 x 32
a) 460 + 85 . 4 = ( x + 200 ) : 4
x = ?
b) x : 15 + 42 = 15 + 25 . 8
x = ?
c) x - 32 : 16 = 48
x = ?
d) x - 6 : 2 - ( 48 - 24 . 2 : 6 - 3 ) = 0
x = ?