tinh nhanh
( 456x11+912)x37 / 13x74
864x48-432x96 / 864x48x432
16x17x5 / 16x16+11
45x16-17 / 28+45x15
giup mk nha cac ban
ai giup mk mk tk cho 3 cai moi ngay
thank you very much
\(\left(456.11+912\right).\frac{37}{13.74}=5928.\frac{37}{962}=228\)
\(864.48-432.\frac{96}{864.48.432}=41472-432.\frac{96}{17915904}=41472-\frac{1}{186624}=4147058529\)
\(16.17.\frac{5}{16.16+11}=272.\frac{5}{2816}=\frac{85}{176}\)
Tinh nhanh:
(456x11+912)x37:(13x74)
( 456 x 11 + 912 ) x 37 : ( 13 x 74 )
( 456 x 11 + 192 ) x 37 : 13 x 37 x 2
= ( 456 x 11 + 456 x 2 ) x 37 : 13 x 37 x 2
= ( 456 x ( 11 + 2 ) x 37
= 456 x 17 x 37 : 13 x 37 x 2= 456 : 2 =
= 228
\(\left(456\times11+912\right)\times37\div\left(13\times74\right)\)
((476x11+912)x37) / (13x74) = (6148 x 37) / (13 x 74) = 6148 / 13 x 2 = 3074 / 13
5016+912=5928
5928nhan37:962
219336:962
228
dap an dung la 228
a}168x168-168x58 !!!!!!!!!!! b}{456x11+912}x37
110 13x74
c}864x48-431x96
864x48x432
ae giải đê !ai nhanh mk tick
tinh nhanh
a,132x99+132
b,49x13+49x7
c,(56x27+56x35):62
d,\(\frac{864x48-432x96}{864x48x432}\)
e,1+6+11+16+....+46+51
anh chi giup em voi a.
thoi han la den chieu thu 2 ngay 29/8/2016 nha.
132 x 99 + 132
= 132 x 99 + 132 x 1
= 132 x ( 99 + 1 )
= 132 x 100
= 13 200
49 x 13 + 49 x 7
= 49 x ( 13 + 7)
= 49 x 20
= 980
a)
132x99+132=132X100
=13200
b)
49X13+49X7=49X(13+7)
=49X20
=980
c)
(56X27+56X35):62= 56X62:62
=56
d)
864X48-432X96/864X48X432
=96/1
e)
Tổng là
[( 51-1):5+1]X(51+1):2=286
[(456x11+912)x37]:(13x74)
[(456 * 11+ 912) * 37 ] : ( 13 * 74 )
= [ ( 5016 + 912 ) * 37 ] : 962
= [ 5928 * 37 ] : 962
= 219 336 : 962
= 228
\(\left[\left(456.11+912\right).37\right]:\left(13.74\right)\)
\(=\left[\left(5016+912\right).37\right]:962\)
\(=\left(5928.37\right):962\)
\(=219336:962\)
\(=228\)
bai 1: a) voi nuoc thu nhat moi gio chay duoc 1/5 the tich cua be, voi nuoc thu hai moi gio chay duoc 3/10 the tich cua be. hoi khi ca hai voi nuoc cung chay vao be trong mot gio thi duoc bao nhieu phan tram the tich cua be?
b) mot manh dat hinh chu nhat co nua chu vi la 75m,chieu rong bang 2/3 chieu dai. tinh dien tich manh dat do
bai 2: 7/12 - 2/7 + 1/12 ; 12/17 - 5/17 - 4/17 ;
bai 3: a) 7/11 + 3/4 + 4/11 + 1/4 tinh bang cach thuan tien ca 4 bai
b)72/99 - 28/99 - 14/99
c)69,78 + 35,97 + 30,22
d)83,45 - 30,98 - 42,47
bai 4: 3/5 + x = 6/10 ;
bai 5: mot xa co 540,8ha dat trong lua . dien tich dat trong hoa it hon dien tich dat trong lua 385,5ha. tinh tong dien tich dat trong lua va trong hoa cua xa do.
(456x11+912)x37
13x74
( 456 x 11 + 912 ) x 37
= ( 5016 + 912 ) x 37
= 5928 x 37
= 219336
13 x 74
= 962
bai 1 : tinh bang hai cach
a) 3/22 x3/11 x22 =??
b)( 1/2 + 1/3 ) x2/5 =???
c)
3/5 x 17/21 + 17/21 x 2/5 =???
tinh nhanh
a,132x99+132
b,49x13+49x7
c,[56x27+56x35]:62
d,864x48-432x96/864x48x432
e,1+6+11+16+....+46+51
ai lam nhanh va dung mih k 3k cho.
thoi han la den chieu thu 2ngay 29 nha
d) 864x48-432x96/864x48x432
=864x48-(432x2)x(96:2)/864x48x432
=864x48-864x48/864x48x432
=0/864x48x432
=0
ai lam het tat ca mih k 3 k cho
