Tinh bang cach thuan tie nhat:
a)75,32 - 46,75 - 13,25...
giup mik voi
Tinh bang cach thuan tien : 13,25:0,5+13,25:0,25+13,25:0,125
13,25 :0,5+13,25:0,25+13,25:0,125
=13,25:(0,5+0,25+0,125)=13,25:0,875=13,25:7/8=13,25x8/7=106/7=15,14285714
Tinh bang cach thuan tien
42,37 - 28,73 - 11,27
giup minh voi
tinh bang cach thuan tien nhat
0,12 nhan 400
giup em voi
a) 0,12 x 400 = 0,12 x 100 x 4 = 12 x 4 = 48
4,7 x 5,5 - 4,7 x 4,5 = 4,7 x (5,5 - 4,5) = 4,1 x 1 = 4,7
0,12 x 400 =0,12 x 100 x4
=12 x 4
= 48
k mình đi mình k lại ! ^o^
bai 4 tinh bang cach thuan tien nhat: b, 12/7*3/4-3/4*12/7 giup minh voi
\(\dfrac{12}{7}\) \(\times\) \(\dfrac{3}{4}\) - \(\dfrac{3}{4}\) \(\times\) \(\dfrac{12}{7}\)
= \(\dfrac{9}{7}\) - \(\dfrac{9}{7}\)
= 0
Tinh bang cach thuan tien nhat
4/7-2/5+17/7-3/5
giup minh voi minh dang can gap
= 17/7 + 4/7 - 2/5 + 3/5
= 21/7 - 5/5
= 3 - 1
= 2
Bai 1: tinh nham bang cach thuan tien nhat
A,2000-{46-[24+71*4):15]}
Giup minh voi
A = \(2000-\left\{46-\left[24+74.4\right]:15\right\}\)
A = \(2000-\left\{46-\left[24+296\right]:15\right\}\)
A = \(2000-\left\{46-320:15\right\}\)
A = \(2000-\left(46-\frac{64}{3}\right)\)
A = \(2000-\left(\frac{138}{3}-\frac{64}{3}\right)\)
A = \(2000-\frac{74}{3}\)
A = \(\frac{6000}{3}-\frac{74}{3}\)
A = \(\frac{5926}{3}\)
tinh bang cach thuan tien nhat
13,25: 0,5 + 13,24: 0,25 + 13,25 : 0,125
ai nhanh va dung nhat minh se tik
\(13,25:0,5+13,24:0,25+13,25:0,125\)
\(=13,25\times2+13,24\times4+13,25\times8\)
\(=13,25\times\left(2+8\right)+13,24\times4\)
\(=13,25\times10+52,96\)
\(=132,5+52,96\)
\(=185,46\)
CHÚC BN HỌC TỐT!!
Bằng 185,46
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tinh bang cach thuan tien nhat
20,2*5,1-60,6*1,7+17,8
mik can gap giup mik nhe!
\(20,2\times5,1-60,6\times1,7+17,8\)
\(=20,2\times3\times1,7-60,6\times1,7+17,8\)
\(=60,6\times1,7-60,6\times1,7+17,8\)
\(=0+17,8=17,8\)
~ Hok tốt ~
tinh bang cach thuan tien
<325x63>:<5x9>
giup minh voi nha mai minh nop bai cho co roi
= ( 325 : 5 ) x ( 63 : 9 )
= 65 x 7
= 455
h nha
( 325 x 63 ) : ( 5 x 9 ) = ( 325 : 5 ) x ( 63 : 9 ) = 65 x 7 = 455