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The problem is to evaluate the expression $-21 \div (-3) + (-3)$.

ArithmeticOrder of OperationsInteger Arithmetic
2025/5/26

1. Problem Description

The problem is to evaluate the expression −21÷(−3)+(−3)-21 \div (-3) + (-3).

2. Solution Steps

We follow the order of operations (PEMDAS/BODMAS). First, we perform the division:
−21÷(−3)=7-21 \div (-3) = 7
Then we have:
7+(−3)7 + (-3)
Adding a negative number is the same as subtracting the positive number:
7+(−3)=7−37 + (-3) = 7 - 3
7−3=47 - 3 = 4

3. Final Answer

4

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