600:{30:[401-(4.153-4.53)]}
Thực hiện các phép tính (tính nhanh nếu có thể)
a) 600 : 30 : 401 - (4.153 - 4. 53 )
b) 3 10 .11 + 3 10 .5 3 9 .2 4
600:[450:{450-(4.53-23.52)}]
\(=600:\left\{450:\left[450-\left(500-200\right)\right]\right\}\)
\(=600:\left\{450:\left[450-300\right]\right\}\)
\(=600:3=200\)
=600:{450:[450-(4.125-8.25)]}
=600:{450:[450-(8.125-4.25)]}
=600:{450:[450-300]
=600:{450:150}
=600:3
=200
Lần sau bn nhớ ghi đúng thứ tự ngoặc nhé
Thực hiện phép tính:
a, 600 : { 450 : 450 - 4 . 5 3 - 2 3 . 5 2 }
b, 18 . { 420 : 6 - 150 - ( 68 . 2 - 2 3 . 5 ) }
a, 600 : { 450 : 450 - 4 . 5 3 - 2 3 . 5 2 }
= 600:{450:[450 - (4.125 - 8.25)]} = 600:{450:[450 - (500 - 200)]}
= 600:{450:[450 - 300]} = 600:{450:150} = 600:3 = 200
b, 18 . { 420 : 6 - 150 - ( 68 . 2 - 2 3 . 5 ) }
= 18.{70 - [150 - (68.2 - 8.5)]} = 18.{70 - [150 - (136 - 40)]}
= 18.{70 - [150 - 96]} = 18.{70 - 54} = 18.16 = 288
4.53 - 32 : 25
\(4\cdot5^3-32:2^5\)
\(=4\cdot125-32:32\)
\(=500-1\)
\(=499\)
#\(Toru\)
\(4.5^3-32:2^5\)
\(=4.125-2^5:2^5\)
\(=500-1=499\)
#Duo
\(4.5^3-32:2^5 =4.125-32:32 =500-1 =499 #ggs\)
Chọn các đáp án đúng:
(600 : 30) : 5 = 600 : (30 : 5)
(600 + 30) + 5 = 600 + (30 + 5)
(600 - 30) - 5 = 600 - (30 - 5)
(600 x 30) x 5 = 600 x (30 x 5)
Các đáp án nha.
Đáp án đúng là:
(600 + 30) + 5 = 600 + (30 + 5)
(600 x30) x 5 = 600 x ( 30 x 5)
(600 x 30) x 5 = 600 x (30 x 5)
(600 + 30) + 5 = 600 +(30 + 5)
100 : { 250 :[450- (4.53-22.25)]}
Nhanh giúp mik nha
\(100:\left\{250:\left[450-\left(4\cdot5^3-2^2\cdot25\right)\right]\right\}\)
\(=100:\left\{250:\left[450-\left(4\cdot125-4\cdot25\right)\right]\right\}\)
\(=100:\left\{250:\left[450-\left(500-100\right)\right]\right\}\)
\(=100:\left[250:\left(450-400\right)\right]\)
\(=100:\left(250:50\right)\)
\(=100:5\)
\(=20\)
4.53- 32: 24=
giải chi tiết giúp mik nha (◍•ᴗ•◍)❤
cảm ơn m.n
-425-(-67+57-452)
=-425+67-57+452
=[-425+425]+(67-57)
=0+0=0
-425-(-67+75-452)
=-425+67-75+452
=-(425+75)+(67+452)
=(-500)+519
=19
tihs = cách thuận tiện nhất :
4.25+4.32+4.39+4.46+4.53
4.25+4.32+4.39+4.46+4.53
=4.(25+32+39+46+53)
=4.195
=780
= 4.(25 + 32 + 39 + 46 + 53)
= 4.195=780
Thực hiện phép tính:
a)23.15 - [115-(12-5)2 ]
b) 100 : {250 : [450 - (4.53 - 23.25)]}
\(2^3.15-\left[115-\left(12-5\right)^2\right]=8.15-\left[115-7^2\right]=120-\left[115-49\right]=120-66=54\)
\(100:\left\{250:\left[450-\left(4.5^3-2^2.25\right)\right]\right\}=100:\left\{250:\left[450-\left(4.125-4.25\right)\right]\right\}=100:\left\{250:\left[450-\left(500-100\right)\right]\right\}\)
\(=100:\left[250:\left(450-400\right)\right]=100:\left(250:50\right)=100:5=20\)
a,23 . 15 -[115-\((\)12-5)2]
= 8. 15 - [115- 72 ]
=120-[115-49]
=120-66
=54
b, 100:{250:[450-\((\)4.53 - 23.25)]}
=100:{250:[450-\((\)4.125-8.25)]}
=100:{250:[450-\((\)500-300)]}
=100:{250:[450-200]}
=100:{250:250}
=100:1
=100