Subtraction of Integers

We will learn subtraction of integers using number line.

We know that subtraction is the inverse of addition. Therefore, to subtract an integer, we add its additive inverse.

For example, to find +5 – (+2), we add +5 + (-2). 

Subtraction of Integers

So, on the number line, we move to the left of +5 by 2 steps. +5 + (-2) = +3.

We know that to get a predecessor of a number we subtract 1.

So, predecessor of -20 is -20 - 1 = -21 and successor is -20 + 1 = -19


Solved examples on Subtraction of Integers:

1. Subtract +4 from +7.

Solution:

+7 – (+4) = +7 + (-4). So, we move 4 steps left to 7 on the number line.

Subtraction of Integers

Hence, +7 + (-4) = 3.


2. Subtract (-3) from (-7).

Solution:

-7 – (-3) = -7 + (+3) = -4. So, we move 3 steps to the right of -7 on the number line.

Subtracting Integers

Hence, (-3) from (-7) = -4.






5th Grade Numbers Page

5th Grade Math Problems

From Subtraction of Integers to HOME PAGE




Didn't find what you were looking for? Or want to know more information about Math Only Math. Use this Google Search to find what you need.



New! Comments

Have your say about what you just read! Leave me a comment in the box below. Ask a Question or Answer a Question.




Share this page: What’s this?

Recent Articles

RSS

  1. Formation of Square and Rectangle | Construction of Square & Rectangle

    Jul 16, 25 02:45 AM

    Construction of a Square
    In formation of square and rectangle we will learn how to construct square and rectangle. Construction of a Square: We follow the method given below. Step I: We draw a line segment AB of the required…

    Read More

  2. Perimeter of a Figure | Perimeter of a Simple Closed Figure | Examples

    Jul 16, 25 02:33 AM

    Perimeter of a Figure
    Perimeter of a figure is explained here. Perimeter is the total length of the boundary of a closed figure. The perimeter of a simple closed figure is the sum of the measures of line-segments which hav…

    Read More

  3. Formation of Numbers | Smallest and Greatest Number| Number Formation

    Jul 15, 25 11:46 AM

    In formation of numbers we will learn the numbers having different numbers of digits. We know that: (i) Greatest number of one digit = 9,

    Read More

  4. 5th Grade Quadrilaterals | Square | Rectangle | Parallelogram |Rhombus

    Jul 15, 25 02:01 AM

    Square
    Quadrilaterals are known as four sided polygon.What is a quadrilateral? A closed figure made of our line segments is called a quadrilateral. For example:

    Read More

  5. 5th Grade Geometry Practice Test | Angle | Triangle | Circle |Free Ans

    Jul 14, 25 01:53 AM

    Name the Angles
    In 5th grade geometry practice test you will get different types of practice questions on lines, types of angle, triangles, properties of triangles, classification of triangles, construction of triang…

    Read More