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\(=100:\left\{250\left[450-\left(4\cdot125-4\cdot25\right)\right]\right\}\\ =100:\left[250\left(450-400\right)\right]\\ =100:\left(250\cdot50\right)=100:12500=12,5\)
=100:{250.[450-(4.125-4.25)]}
=100:{250:[450-400]}
=100:{250:50}
=100:5
=20
1.=545.(65+15-80)
=545.0
=0
2.=100:{250:[450-(4.125-4.25)]}
=100:{250:[450-4.(125-25)]}
=100:{250:[450-4.100]}
=100:{250:50}
=100:5
=20
100:{250:[450-(4.53-22.25)}]
=100:{250:[450-(500-100)]}
=100:{250:[450-400]}
=100:{250:50}
=100:5
=20
100:{250:[450-(4.53-22.25)]}
=100:{250:[450-(4.125-4.25)]}
=100:{250:[450-(500-100)]}
=100:{250:[450-400]}
=100:{250:50}
=100:5=20
100:{250:[450-(4.53-22.25)]}
=100:{250:[450-(4.125-4.25)]}
=100:{250:[450-(500-100)]}
=100:{250:[450-400]}
=100:{250:50}
=100:5=20
a) \(4.3^4-16:2^2+2.5^3\)
\(=4.81-16:4+2.125\)
\(=324-4+250\)
\(=570\)
b) \(100:\left\{250:\left[450-\left(4.5^3-25.4\right)\right]\right\}\)
\(=100:\left\{250:\left[450-\left(500-100\right)\right]\right\}\)
\(=100:\left\{250:\left[450-400\right]\right\}\)
\(=100:\left\{250:50\right\}\)
\(=100:5\)
\(=20\)
nhớ là 3 k nhá
a) 4.3^4-16:2^2+2.5^3
= 4.81-16:4+2.125
= 324-4+250
= 320+250
= 570
b)100:{250:[450-(4.5^3-25.4)]}
= 100:{250:[450-(4.125-100)]}
= 100:{250:[450-(500-100)]}
= 100:{250:[450-400]}
= 100:{250:50}
= 100:5
= 20
nhớ đúng cho mình nha