Tinh bang cach thuan tien nhat
58 * 635 - 48 * 635 bang bao nhieu
Tinh bang cach thuan tien 9/5:17/15+8/5:17/15 bang bao nhieu
\(\frac{9}{5}:\frac{17}{15}+\frac{8}{5}:\frac{17}{15}\)
\(=\frac{17}{15}:\left(\frac{9}{5}+\frac{8}{5}\right)\)
\(=\frac{17}{15}:3\)
\(=\frac{17}{45}\)
\(\frac{9}{5}:\frac{17}{15}+\frac{8}{5}:\frac{17}{5}=\frac{9}{5}.\frac{15}{17}+\frac{8}{5}.\frac{15}{17}=\frac{15}{17}\left(\frac{9}{5}+\frac{8}{5}\right)=\frac{15}{17}.\frac{17}{5}=3\)
9/5 : 17/15 + 8/5 : 17/15
= ( 9/5 + 8/5 ) x 15/17
= 17/5 x 15/17
= 3
tinh bang cach thuan tien nhat
16*48+8*48+32*14
16x48+8x48+32x14
=48x(16+8)+32x14
=48x24+32x14
=1152+448
=1600
16 x 48 + 8 x 48 + 32 x 14
= 48 x (16 + 14) x (32 + 8)
=48 x 20 x 40
=38400
Tinh bang cach thuan tien nhat
( 48 + 32 + 56 ) : 8
( 48 + 32 + 56 ) : 8
= 48 : 8 + 32 : 8 + 56 : 8
= 6 + 4 + 7 = 10 + 7 = 17
( 48 + 32 + 56 ) : 8
= (48 : 8) + (32 : 8) + (56 : 8)
= 6 + 4 + 7
= 10 + 7
= 17
tinh bang cach thuan tien
200,6:12,5:0,8
cach ban giup minh nha yeucac ban nhieu
200,6 : 12 ,5 : 0,8
= 200,6 : ( 12,5 x 0,8 )
= 200,6 : 10
= 20, 06
k mình nhé
200,6:12,5:0,8
=200,6:10
=20,06
tk mình nha
thank you bạn
TINH BANG CACH THUAN TIEN NHAT
\(\dfrac{1}{3}+\dfrac{6}{5}-\dfrac{1}{5}+\dfrac{2}{3}=2\)
346x75+346+20x346+346x4 tinh bang cach thuan tien nhat là bằng bao nhiêu v mn
=346x75+346x1+20x346+346x4
=346x(75+1+20+4)
=346x100
=34600
\(346\times75+346+20\times346+346\times4\)
\(=346\times\left(75+20+4+1\right)\)
\(=346\times100\)
\(=34600\)
tinh bang cach thuan tien 2x3x4x5
2 x 3 x 4 x 5
= 6 x 20
= 120
=[ 2 x 5 ] x [ 3 x 4 ]
= 10 x 12
= 120
Tinh bang cach thuan tien 50056456+56442424455x2
50056456+(56442424455x2)=50056456+112884848910
=112934905366
tinh bang cach thuan tien nhat: 2,5x12,5x8x0,4
2,5 x 12 ,5 x 8 x 0,4=(2,5 x 0,4 ) x(12,5 x8)
=1x100=100
=2,5 x 12,5 x 8 x 0,4
=(2,5 x 0,4) x (12,5 x 8)
=1 x 100
=100
Tính bằng cách thuận tiện nhất: 2,5x12,5x8x0,4=100
k mik nha