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415 x 42 + 415 x 33 + 415 x 25
= 415 x ( 42 + 33 + 25)
= 415 x 100
= 41500
a, 2x9x5x7x4x25
=(2x5)x(4x25)x(9x7)
=10x100x63
=63x1000
=63000
b, 6x14x5x25x3x4
=6x2x7x5x3x(4x25)
=(6x7x3)x(2x5)x100
=122x10x100
=122x1000
=122000
a) \(2\times9\times5\times7\times4\times25\)
\(=\left(2\times5\right)\times\left(4\times25\right)\times\left(9\times7\right)\)
\(=10\times100\times63=63000\)
b) \(6\times14\times5\times25\times3\times4\)
\(=\left(6\times3\right)\times\left(14\times5\right)\times\left(25\times4\right)\)
\(=18\times70\times100=126000\)
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
đơn giản mà
TL:
= ( 100 - 99) + (98 - 97) + (96 - 95) + 94 - (93 - 92) + ( 91 - 90 )
= 1 + 1 + 1 + 94 - 1 + 1
= 3 + 94 - 1 + 1
= 97
~~HT~~
ỦNG HỘ NHAAAAAAAAA
TL:
16872 + 9328 + 20672 + 13128 + 10000
= ( 16872 + 13128 ) + ( 9328 + 20672 ) + 10000
= 30000 + 30000 + 10000
= 70000
- HT -
TL :
16872 + 9328 + 20672 + 13128 + 10000
= ( 16872 + 13128 ) + ( 9328 + 20672 ) + 10000
= 30000 + 30000 + 10000
= 60000 + 10000
= 70000
~HT~
122 x 48 - 22 x 48 : 4 : 25
= ( 122 - 22 ) x 48 : ( 4 x 25 )
= 100 x 48 : 100
= ( 100 : 100 ) x 48
= 1 x 48 = 48
1254 x 22 + 41 x 1254 + 1254 x 38 - 1254
= 1254 x ( 22 + 41 + 38 - 1 )
= 1254 x 100
= 125 400
HT nhé :)))))
a,=(25.4).(125.8)
=100.1000
=100000
b,=789.10=7890
c,123.(125-24-30)
=123.71
=8733
d,=415.(98+1+1)
=415.10
=4150
`25xx125xx4xx8=(25xx4)xx(125xx8)=100xx1000=100000`
`789xx5xx2=789xx(5xx2)=789xx10=7890`
`123xx125-24xx123-123xx30=123xx(125-24-30)=123xx71=8733`
`415xx98+415+415=415xx(98+1+1)=415xx100=41500`
125 - 24 - 30 chứ ạ?:)
Uk nhề :)
Mắt vs mũi :<
25x 125x4x8
= (25x4) x 125 x 8
= 100 x 1000
= 100000
789x5x2
= 789 x 10
= 7890
123x125-24x123-123x30
= (125 - 24 - 30 ) x 123
= 71 x 123
= 8733
415x98+415+415
=( 98 + 1 + 1)x 415
= 100 x 415
= 41500
nhường táu đi :">
123x 125 =125->154 nha
25 x 125 x 4 x 8
= (25 x 4) x (125 x 8)
= 100 x 1000
= 100 000
789 x 5 x 2
= 789 x (5 x 2)
= 789 x 10
= 7890
123 x 154 - 24 x 123 - 123 x 30
= 123 x (125 - 24 - 30)
= 123 x 100
= 12 300
415 x 98 + 415 + 415
= 415 x (98 + 1 + 1)
= 415 x 100
= 41500
123x125-24x123-123x30
125 thành 154 kìa viết sai đề
123x125-24x123-123x30
125 thành 154 kìa viết sai đề
123x125-24x123-123x30
125 thành 154 kìa viết sai đề
đờ mờ?
sai chỗ nào
123x125-24x123-123x30
= (125 - 24 - 30 ) x 123
= 71 x 123
= 8733
nek Fan ST - Hiha làm sai đề
đậu xanh ....
đậu xanh rau má trà đá đường đen...
đờ mờ chủ tuss ko nói sớm >:V