80-(130-(12-4)2) = ?
80-(130-(12-4)2
80- [130- (12- 4) mẫu 2]
\(80-\left[130-\dfrac{\left(12-4\right)}{2}\right]=80-\left(130-4\right)\)
\(=80-126-46\)
80-[130-(12-4)^2]
= 80-[130-(8)^2]
=80-[130-64]
=80-66
=14
👌👌👌
{ 80 - [ 130-(12-4 mũ 2)] } :2
{80-[130-(12-4^2)]}:2
={80-[130-(12-16)]}:2
={80-[130-(-4)]}:2
={80-134}:2
=-54:2
=-27
80 - [130 -(12 - 4 )^2
\(80-\left[130-\left(12-4\right)^2\right]\)
\(=80-\left[130-8^2\right]\)
\(=80-\left[130-64\right]\)
\(=80-66=14\)
Thực hiện các phép tính: 80 – [130 – (12 - 4)2]
80 – [130 – (12 - 4)2] = 80 – [130 – 82]
= 80 – [130 - 64] = 80 - 66 = 14
80-[130-(12-4) luy thua 2]
80-[130-(12-4)2]
=80-[130-82]
=80-[130-64]
=80-66
=14
Tính nhanh:
a, 23 . 17 - 23 . 14
b, 80 - [130 - (12 - 4)2]
\(a,=2^3\left(17-14\right)=2^3\cdot3=24\\ b,=80-\left(130-8^2\right)=80-\left(130-64\right)=80-66=14\)
80-[130-(12-4)\(^2\)]
80 - [ 130 - ( 12 - 4) 2 ]
= 80 - [ 130 - 82 ]
= 80 - [ 130 - 64 ]
= 80 - 66
= 14
\(80-\left[130-\left(12-5\right)^2\right]\)
\(=80-\left(130-8^2\right)\)
\(=80-\left(130-64\right)\)
\(=80-66\)
\(=14\)
80 - [130 - (12 - 4)2 ] = ?
\(80-\left[130-\left(12-4\right)^2\right]=80-\left[130-64\right]=80-66=14\)
CDo**** phải không Đinh Thị Xuân Mai?
80-[130-(12-4)2]= 80-[130-64]=80-66=14