-3 + (-6)
-3 + (-6) = -3 - 6 = -9
To add -3 and -6, follow these steps:
Step 1: Write down the numbers, -3 and -6.
Step 2: Align the numbers vertically so that the decimal points are in line.
-3
-6
Step 3: Add the digits in the same column from right to left.
-3
-6
______
-9
Step 4: Since both numbers are negative, the sum is negative.
Therefore, -3 + (-6) equals -9.