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).
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.
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.
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.
Recent Articles
-
2nd Grade Math Practice | Second Grade Math |2nd Grade Math Worksheets
Nov 18, 24 02:23 PM
In 2nd grade math practice you will get all types of examples on different topics along with the solutions. Second grade math games are arranged in such a way that students can learn math -
2nd Grade Measurement Worksheets | Measuring Length, Mass and Volume
Nov 18, 24 02:19 PM
2nd Grade Measurement Worksheets -
Worksheet on Addition of Length | Word Problems on Addition of Length
Nov 17, 24 10:29 PM
Practice the third grade math worksheet on addition of length. This sheet provides different types of questions where you need to arrange the values of length under different columns to find their sum -
Worksheet on Addition of Mass | Word problems on Addition of Mass
Nov 17, 24 10:26 PM
Practice the third grade math worksheet on addition of mass/weight. This sheet provides different types of questions where you need to arrange the values of mass under different columns -
Worksheet on Addition of Capacity | Word Problems on Adding capacity
Nov 17, 24 10:19 PM
Practice the third grade math worksheet on addition of capacity. This sheet provides different types of questions where you need to arrange the values of capacity under different columns of litres and
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.