8 x 427 x3 + 6 x 573 x 4
tính nhanh
8 x 427 x 3 + 6 x 573 x 4 = ???
tính hộ mik
8 x 427 x 3 + 6 x 573 x 4
= (8 x 3) x 427 + 573 x (6 x 4)
= 24 x 427 + 573 x 24
= 24 x (427+573)
= 24 x 1000
= 24 000
Tính nhanh giá trị biểu thức
8 x 427 x 3 + 6 x 573 x 4
= 24 x 427 + 24 x 573
= 24 x (427 + 573)
= 24 x 1000
= 24000
\(=\left(8\times3\right)\times427+\left(6\times4\right)\times573\\ =24\times427+24\times573\\ =24\times\left(427+573\right)\\ =24\times1000\\ =24000\)
Tính nhanh
8 x 427 x 3 + 6 x 573 x 4
2008 x 867 + 2009 x 133
8 x 427 x 3 + 6 x 573 x 4
= 8 x 3 x 427 + 6 x 4 x 573
= 24 x 427 + 24 x 573
= 24 x (427 + 573)
= 24 x 1000
= 24000
2008 x 867 + 2009 x 133
= 2008 x 867 + 2008 x 133 + 133
= 2008 x (867 + 133) + 133
= 2008 x 1000 + 133
= 2008133
a) \(8x427x3+6x573x4\)
\(=8x3x427+6x4x573\)
\(=24x427+24x573\)
\(=24x\left(427+573\right)\)
\(=24x1000\)
\(=24000\)
b) \(2008x867+2009x133\)
\(=2008x867+\left(2008+1\right)x133\)
\(=2008x867+2008x133+133\)
\(=2008x\left(867+133\right)+133\)
\(=2008x1000+133\)
\(=2008000+133\)
\(=2008133\)
Câu 2: Tính nhanh:
a, 8 x 427 x 3 + 6 x 573 x 4
b, 6 x 1235 x 20 - 5 x 235 x 24
làm theo kiểu lớp 4 nha
a=8x3x6x4x(427+573)
a=8x3x6x4x1000
a=576000
tinh nhanh; 8 x 427 x 3 + 6 x 573 + 46 x 1235 x 20 - 5 x 235 x 24
\(8\cdot427\cdot3+6\cdot573+46\cdot1235\cdot20-5\cdot235\cdot24\)
\(=4\cdot2\cdot427\cdot3+6\cdot573+23\cdot2\cdot1235\cdot20-5\cdot235\cdot4\cdot3\cdot2\)
\(=4\cdot427\cdot6+6\cdot573+23\cdot2\cdot247\cdot5\cdot20-20\cdot5\cdot47\cdot3\cdot2\)
\(=6\cdot\left(4\cdot427+573\right)+23\cdot247\cdot200-47\cdot3\cdot200\)
\(=6\cdot\left(1708+573\right)+23\cdot\left(200+47\right)\cdot200-47\cdot3\cdot200\)
\(=6\cdot2281+23\cdot200\cdot200+23\cdot47\cdot200-47\cdot3\cdot200\)
\(=13686+23\cdot40000+20\cdot200\cdot47\)
\(=13686+920000+4000\cdot47\)
\(=13686+920000+188000\)
\(=13686+\left(920000+188000\right)\)
\(=13686+1108000=1121686\)
trời ơi là trời
làm đúng mà dis
mệt quá là mệt
thằng mô dis tui hử khai mau
tui dis hết luôn cho mà coi
Bài 4: Tính Nhanh
8 x 427 x 3 + 6 x 573 x 4
6 x 1235 x 20 - 5 x 235 x 24
\(a,8\times427\times3+6\times573\times4\)
\(=24\times427+24\times573\)
\(=24\times\left(427+573\right)\)
\(=24\times1000\)
\(=24000\)
\(b,6\times1235\times20-5\times235\times24\)
\(=120\times1235-120\times235\)
\(=120\times\left(1235-235\right)\)
\(=1235\times1000\)
\(=1235000\)
1,
a,8 x 427 x 3 - 6 x 573 x 4
b, 6x 123 x 20 - 5 x 235 x 24
nhanh len minh tick cho
a,
8 x 427 x 3 - 6 x 573 x 4
= 24 x 472 - 24 x 573
= 24 x (473 - 573)
b, tương tự
tuy nhiên với đề bài như vậy, k phù hợp với HS lớp 4
a) 8 x 427 x 3 + 6 x 573 x 4
b) 6 x 1235 x 20 – 5 x 235 x 24
c) (72 x 135 + 9 x 65 + 8) : 25 – 3500 : 25
d) (18 x 957 – 9 x 354 x 2 – 3 x 621 x 6) : 72
a: =24*1000=24000
b: =120*1000=120000
c: =72(135+65):25-140
=72*8-140=436
d: =18(957-354-621):72=-9/2
a, 10000 - 47 x 72 x 28 =
b, ( 145 x 99 + 145 ) - ( 143 x 101 - 143 ) =
c, 1002 x 9 - 18 =
d, 8 x 427 x 3 + 6 x 573 x 4 =
e, 2008 x 867 x 2009 x 133 =