HT3. Calculation results of IQ test ̣̣(4)

To solve this problem, we apply the rules of precedence in mathematics.

Step 1: Perform calculations inside parentheses first. 2×2 = 4.

Step 2: Perform multiplication and division from left to right. In this case, there is no multiplication, so we perform division. 2 ÷ 2 = 1.

Step 3: Continue to perform remaining calculations from left to right. 2 – 4+1= -1.

Step 4: The final result is -1.

Therefore, the result of the calculation is -1.