![]() ![]() Since ?-1>-10?, the second number is larger so the sign of the result is negative. Here, the first number is ?-10? and the second number is ?-1?. Since ?-3>-4?, the first number is larger so the result is positive. Here, the first number is ?-3? and the second number is ?-4?. Negative ?-? Negative. When we subtract one negative number from another, the result will be positive if the first number is larger, but negative if the second number is larger. If the two positive numbers are equal, the result is ?0?. Since ?10>1?, the first number is larger so the sign of the result is positive. Here, the first number is ?10? and the second number is ?1?. Since ?4>3?, the second number is larger so the result is negative. Here, the first number is ?3? and the second number is ?4?. Positive ?-? Positive. When we subtract one positive number from another, the result will be positive if the first number is larger, but negative if the second number is larger. Let’s tackle subtracting numbers for the same combinations we considered for addition. If the positive number and the negative number are opposites, the answer is ?0?. The sign needs to be positive, so we get ?9?. So we subtract ?1? from ?10? and get ?9?. ?10? is larger than ?1?, so the positive number is larger, which means the answer will be positive. Here, the negative number is ?-1?, and the positive number is ?10?. So we subtract ?3? from ?4? and get ?1?, The sign needs to be negative, so we get ?-1?. ?4? is larger than ?3?, so the negative number is larger, which means the answer will be negative. ![]() Here, the negative number is ?-4? and the positive number is ?3?. Positive ?+? Negative, Negative ?+? Positive. When we add one positive number and one negative number, the result will be positive if the positive number is larger, but negative if the negative number is larger. The trick is: think of the numbers as if they were both positive, and subtract the smaller number from the larger number the sign of the answer will be the original sign of the larger number. Negative ?+? Negative ?=? Negative. The trick is: add the numbers as if they were both positive, but make the sign negative. Positive ?+? Positive ?=? Positive. The trick is: add the numbers, keeping the sign positive. Let’s tackle adding numbers for these three combinations. ![]() One positive number and one negative number When it comes to adding and subtracting signed numbers, let’s break down the three possible combinations we could face when we have two signed numbers: ![]()
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