Tính nhanh:
12345 x 22 + 12345 x 38 + 12345 x 25 + 12345 x 15
Tính nhanh:
12345 x 17 + 23 x 12345 + 12345 + 12345 x 35 + 12345 x 24
12345 x 17 + 23 x 12345 + 12345 + 12345 x 35 + 12345 x 24
= 12345 x 17 + 23 x 12345 + 12345 x 1 + 12345 x 35 + 12345 x 24
= 12345 x (17 + 23 + 1 + 35 + 24)
= 12345 x 100
= 1234500
=> 12345 x (17 + 23 + 1 + 35 + 24 )
=> 12345 x 100
=> 1234500
= 12345 x ( 17 + 23 + 24 + 1 + 35 ) = 12345 x 100 = 1234500
Tính nhanh:
12345 x 17 + 23 x 12345 + 12345 + 12345 x 35 + 12345 x 24
12345 x 17 + 23 x 12345 + 12345 + 12345 x 35 + 12345 x 24
= 12345 x 17 + 23 x 12345 + 12345 x 1 + 12345 x 35 + 12345 x 24
= 12345 x (17 + 23 + 1 + 35 + 24)
= 12345 x 100
= 1234500
Tính nhanh:
12345 x 17 + 23 x 12345 + 12345 + 12345 x 35 + 12345 x 24
12345 x 17 + 23 x 12345 + 12345 + 12345 x 35 + 12345 x 24
= 12345 x 17 + 23 x 12345 + 12345 x 1 + 12345 x 35 + 12345 x 24
= 12345 x (17 + 23 + 1 + 35 + 24)
= 12345 x 100
= 1234500
trường gì đấy
Tính nhanh:
12345 x 17 + 23 x 12345 + 12345 + 12345 x 35 + 12345 x 24
12345 x 17 + 23 x 12345 + 12345 + 12345 x 35 + 12345 x 24
= 12345 x 17 + 23 x 12345 + 12345 x 1 + 12345 x 35 + 12345 x 24
= 12345 x (17 + 23 + 1 + 35 + 24)
= 12345 x 100
= 1234500
Tính nhanh:
12345 x 17 + 23 x 12345 + 12345 + 12345 x 35 + 12345 x 24
12345 x 17 + 23 x 12345 + 12345 + 12345 x 35 + 12345 x 24
= 12345 x 17 + 23 x 12345 + 12345 x 1 + 12345 x 35 + 12345 x 24
= 12345 x (17 + 23 + 1 + 35 + 24)
= 12345 x 100
= 1234500
Tính nhanh :
12345 x 64 + 12345 + 12345 x 35 =
12345x64 + 12345x1+ 12345x35=12345x(64+1+35)
12345x100=1234500
Tính nhanh ;
a ) 2008 x 99 + 2008
b ) 490 x 365 - 390 x 365
c ) 2364 + 37 x 2367 + 63
d ) 12345 x 17 + 23 x 12345 + 12345 + 12345 x 35 + 12345 x 24
không ghi lại đề nha !
a ) = 2008 x ( 99 + 1 )
= 2008 x 100
= 200800
b ) = ( 490 - 390 ) x 365
= 100 x 365
= 36500
c) = 2364 x ( 37 + 63 )
= 2364 x 100
= 236400
d ) = 12345 x ( 17 + 23 + 1 + 35 + 24 )
= 12345 x 100
= 1234500
Tinh nhanh
12345 x 17 + 23 x 12345 + 12345 + 12345 x 35 + 12345 x 24 = .......
giup em nha anh chi em se tick
=1234500
HT[][][][]
= 1234500 mha bn > <
12345 x ( 17 + 23 + 1 + 35 + 24 )
= 12345 x 100
= 1234500
HT + :)))
~~~~~~
Tính bằng cách thuận tiện nhất: 12345 x 17 + 23 x 12345 + 12345 + 12345 x 35 + 12345 x 24
12345 x 17 + 23 x 12345 + 12345 + 12345 x 35 + 12345 x 24
12345 x ( 17 + 23 + 35 + 24 )
12345 x 99
1222155
= 12345 x 17 + 23 x 12345 + 12345 x 1 + 12345 x 35 + 12345 x 24
= 12345 x ( 17 + 23 + 1 + 35 + 24 )
= 12345 x 100
= 1234500
12345 x 17 + 23 x 12345 + 12345 + 12345 x 35 + 12345 x 24
= 12345 x 17 + 23 x 12345 + 12345 x 1 + 12345 x 35 + 12345 x 24
= 12345 x ( 17 + 23 + 1 + 35 + 24 )
= 12345 x 100
= 1234500
/HT\