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Fill in the blanks: Negative seven minus nine minus three is equal to blank.
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In order to answer this question, we need to recall our order of operations.
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This is often referred to as either BIDMAS or PEMDAS.
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In BIDMAS, the B stands for brackets and the I indices, whereas, in PEMDAS, they’re known as parentheses and exponents.
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The other four letters stand for division, multiplication, addition, and subtraction.
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Note that the multiplication and division are the other way round as it doesn’t matter which order we perform these operations.
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In our question, we will need to work out the calculation inside the brackets or parentheses first.
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As nine minus three is equal to six, our calculation becomes negative seven minus six.
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This involves starting at negative seven on a number line and moving down six places.
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This takes us to negative 13.
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So negative seven minus six is negative 13.
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This is the missing number in the expression or calculation.