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Chapter 1: Problem 147

In the following exercises, model the subtraction. $$5-2$$

Short Answer

Expert verified
3

Step by step solution

01

- Identify the numbers

First, identify the numbers involved in the subtraction. In this case, the numbers are 5 and 2.
02

- Understand subtraction

Subtraction involves taking away a number (subtrahend) from another number (minuend). Here, 5 is the minuend and 2 is the subtrahend.
03

- Perform the subtraction

Subtract the subtrahend from the minuend: 5 - 2 = 3
04

- Write the result

The result of the subtraction is 3.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

minuend
In subtraction, the minuend is the number from which another number is subtracted. It's the starting point, the quantity we have before taking away the subtrahend. For example, in the expression 5 - 2, the number 5 is the minuend.
To better understand, think of the minuend as the total amount of apples you have before giving some away. If you start with 5 apples (the minuend) and give away 2 apples, understanding the minuend's role helps you know where you begin.
subtrahend
The subtrahend is the number that is being taken away from the minuend in a subtraction operation. It represents the quantity that you are subtracting or removing.
Using the same example 5 - 2, the number 2 is the subtrahend. If you have 5 apples and you give away 2, the 2 apples you give away is the subtrahend. In general, knowing the subtrahend helps us to understand what part is being removed from the original amount.
basic arithmetic operations
Arithmetic operations are the basic math actions we perform with numbers. These include operations like addition, subtraction, multiplication, and division.
Subtraction is one of the four basic operations, where we take away a part from a whole. Using our previous example, 5 - 2, we're performing a subtraction operation. By subtracting 2 from 5, we find out how many are left.
When we understand subtraction as taking away, it becomes easier to handle everyday math problems, whether in school or in life.
prealgebra concepts
Prealgebra serves as the foundation for all later math topics. It includes basic arithmetic operations and introduces the principles of working with unknowns or variables.
Learning prealgebra, like understanding the steps in subtraction with 5 - 2, sets a strong base for math skills. In prealgebra, getting comfortable with concepts like the minuend and subtrahend is crucial. For example, recognizing that the minuend is always the larger number from which we subtract the subtrahend helps build our confidence in solving problems.
This solid foundation in prealgebra enables us to tackle more complex algebraic concepts down the road.

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