When writing down the numbers, the + sign is usually omitted, and the number is written without any sign. “-” is the negative sign, marking the numbers below zero or to the left of zero on the number line “+” is the positive sign, marking the numbers above zero, i.e., to the right of zero on the number line. Positive and negative integers are best visualized on the number line, as shown in the image below: The input field accepts up to 60 symbols. ![]() The calculator will identify and demonstrate the final operation sign for each operation. You can use as many consecutive operation signs as necessary without separating them by spaces or symbols. The calculator will automatically convert them into parentheses (). ![]() Square brackets,, or curly brackets,, can also be used. For example, (3 - 4 + 5) is a valid input, while (3 - 4 +) 5 is not. The symbols enclosed in brackets should always end with a number, not an operation sign. You cannot input 5 + (-3, since this equation contains only one bracket. ![]() The brackets, or parentheses, should always come in pairs, i.e., the equation should contain both the opening and the closing bracket. Decimals, where the decimal point separates the whole number part and the decimal part.The input field accepts the following symbols: To use the calculator to add and subtract integers and decimals, enter the given equation and press “Calculate.” The calculator will return the final answer and a step-by-step solution algorithm, identifying the final sign for each operation. The calculator works with positive and negative numbers and finds the solution for any number of consecutive operations (for example, you can enter 5 + - + - + - + - + + 3, and the calculator will identify the final operation sign, +, perform the calculation, and return the final answer, 8). This integer calculator can be used for adding and subtracting integers and decimals.
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