What is 1+(22-1)-1/2 ?

The solution to 1+(22-1)-1/2 is 21 1/2

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1+(22-1)-1/2

1 + (22 - 1) - \frac{1}{2}

21 \frac{1}{2}

Solution steps

1 + (22 - 1) - \frac{1}{2}

Follow the PEMDAS order of operations

Calculate within parentheses

(22 - 1) : 21

= 1 + 21 - \frac{1}{2}

Add and subtract (left to right)

1 + 21 - \frac{1}{2} : \frac{43}{2}

= \frac{43}{2}

Convert improper fractions to mixed numbers:

\frac{43}{2} = 21 \frac{1}{2}

= 21 \frac{1}{2}

12 0^{2} + 13 5^{2}

- 6 (1) + 3

- 5 - (5 - 8) \times (- 2) - (- 12 + 10)

5 - 1^{7}

- 4^{2} - 3 \times (- 4) + 1