Match each expression to its value.
1. 7.5
2.
2. 7+5
12
3. 7.5
1-12
4. 7-1-5)
-2
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Answer:
1. 7-5 =2
2. -7 + 5 = -2
3.-7 - 5 = -12
4. 7 - (-5) = 12
Step-by-step explanation:
#4 - The reason it's 12 is because the -5 is in parenthesis which means they want you to find the absolute value of the number and then add it. The absolute value of a negative number is positive.
#3 really you're adding 5 to -7.
#2 opposite of #3, you can think of it as subtracting 5 from -7.