Westonci.ca offers fast, accurate answers to your questions. Join our community and get the insights you need now. Experience the ease of finding precise answers to your questions from a knowledgeable community of experts. Connect with a community of professionals ready to help you find accurate solutions to your questions quickly and efficiently.
Sagot :
Answer:
1.25
Step-by-step explanation (a):
Given expression:
[tex]-1.25+2.5[/tex]
A few changes were made to the expression.
Those were the following:
- This expression can be written as [tex]2.5 - 1.25[/tex].
- Let 2.5 be 2.50.
Subtract using column subtraction method:
[tex]4[/tex]
______________
[tex]2 \ \ . \ \ 5 \ \ \ \ \ 0[/tex]
[tex]- \ \ \ 1 \ \ . \ \ 2 \ \ \ \ \ 5[/tex]
______________
[tex]\ \ \ 1 \ \ . \ \ 2 \ \ \ \ \ 5[/tex]
Thus, the sum of −1.25 and 2.5 is 1.25.
Step-by-step explanation (b):
In this case, the first addend is the digit in the front of the expression.
⇒ a + b
⇒ a is the first addend
Thus, the first addend is -1.25.
The sum is the addition of two or more digits.
⇒ a + b = c
⇒ c is the sum
Thus, the sum is 1.25, which we calculated above.
Finally, let's plot the sum and the first addend on the number line.

Thank you for visiting. Our goal is to provide the most accurate answers for all your informational needs. Come back soon. We appreciate your time. Please come back anytime for the latest information and answers to your questions. We're glad you visited Westonci.ca. Return anytime for updated answers from our knowledgeable team.