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Chapter 1: Problem 27

Find each sum without the use of a number line. $$-3.6+2.1$$

Short Answer

Expert verified
-1.5

Step by step solution

01

Identify the Sign of Each Number

The first value, -3.6, is a negative number because it has a minus sign (-) in front of it. The second value, 2.1, is a positive number since it doesn't have any sign in front of it.
02

Practice Arithmetic Operation

When you add a positive number to a negative number, you essentially subtract the positive number from the negative number. So, -3.6 + 2.1 can be thought of as -3.6 - 2.1.
03

Perform the subtraction

You then follow the rules of subtraction to get the result. Since you are taking 2.1 away from -3.6, the result will be more negative, specifically, -1.5.

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Most popular questions from this chapter

Perform the indicated subtraction. $$-3.47-(-3.47)$$

Write each English phrase as an algebraic expression. Then simplify the expression. Let x represent the number. The quotient of \(-2\) and a number, subtracted from the quotient of \(-5\) and the number.

Simplify each series of additions and subtractions. $$-\frac{1}{2}-\frac{2}{3}-\left(-\frac{1}{3}\right)$$

Find the value of each expression. $$|-9-(-3+7)|-|-17-(-2)|$$

Write a problem that can be solved by finding the difference between two numbers. At least one of the numbers should be negative. Then explain how to solve the problem.
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