Question

[Ladonna Xavia]

tính

500 - {25:[15+2.(10-20)] + 2030⁰}

2022 - (-55 + 2022)

Answer 1

[Ng Ngọc]

\(500-\left\{25:\left[15+2.\left(10-20\right)\right]+2030^0\right\}\)

\(=500-\left\{25:\left[15+\left(-20\right)\right]+1\right\}\)

\(=500-\left\{25:\left(-5\right)+1\right\}\)

\(=500-\left(-4\right)\)

\(=504\)

\(2022-\left(-5+2022\right)\)

\(=2022+55-2022\)

\(=\left(2022-2022\right)+55=55\)