Final answer:
The solution to the problem -21-22 is -43, and for 1-(-4) it is 5.
Step-by-step explanation:
The question is asking us to subtract the numbers provided. So let's work on it step by step:
- For -21 - 22, you continue on the number line moving to the left from -21, so you get -43.
- For 1 - (-4), understanding that subtracting a negative number is the same as adding its positive counterpart. Therefore, 1 -(-4) becomes 1+4 which is 5.
So, the solutions for -21-22 and 1-(-4) are -43 and 5 respectively.
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