Which of the following is a real-world problem that could be solved with the sum 102.50+(−39.95)?
Nevaeh earned $102.50 last weekend. He then spent $39.95 on a new game. How much money from his weekend earnings does he have left?
Nevaeh bought new headphones for $102.50. He then spent $39.95 on a new game. How much money did Nevaeh spend altogether?
Nevaeh earned $102.50 last weekend. He then received $39.95 from his mom. How much money does he now have?
Nevaeh has $102.50 in his bank account. He then deposits $39.95 into his bank account. How much money does he now have in his bank account?
The real-world problem that could be solved with the sum 102.50+(−39.95) is: Nevaeh earned $102.50 last weekend. He then spent $39.95 on a new game. How much money from his weekend earnings does he have left?
It was 13° C yesterday, but the temperature changed by −18.6° overnight. What is the temperature now?
The temperature now would be 13° C - 18.6° C = -5.6° C.
Use the additive inverse to find −492.89−(−871.78)
To find the difference between -492.89 and -871.78, we can use the additive inverse.
This is equivalent to -492.89 + 871.78.
Calculating this sum, we have 378.89.
Determine the distance between −18.26 and −2.45 on a number line.
To find the distance between -18.26 and -2.45 on a number line, we subtract the smaller number from the larger number:
|-18.26 - (-2.45)| = |-18.26 + 2.45| = |-15.81|
The distance between -18.26 and -2.45 on a number line is 15.81.