Subtraction of Numbers without using Number Line

Learn the rules used for subtraction of numbers without using number line. When the numbers are big, the use of number line is not convenient for their subtraction. Also, it is very time consuming to draw a number line every time, and perform the operation of subtraction.


Rules for subtraction of numbers without using number line in different situation:

To subtract a number from another number, the sign of the number (which is to be subtracted) should be changed and then this number with the changed sign, should be added to the first number.

For Example:

(i) Evaluate (+6) – (+2)

= (+6) + (-2)    (charging the sign of the number to be subtracted and then adding)

On subtracting smaller number 2 from bigger number 6; we get 6 – 2 = 4

Since, the sign of bigger number is + (positive)

= +4 or 4

Therefore, (+6) – (+2) = 4


(ii) Evaluate (+5) – (-3)

= (+5) + (+3)   (charging the sign of the number to be subtracted and then adding)

We know, to add a positive (+ ve) number to a positive (+ ve) number, the numbers should be added and positive sign should be attached to the sum obtained.

= +8

Therefore, (+5) – (-3) = 8


(iii) Evaluate (-7) – (+2)

= (-7) + (-2)    (charging the sign of the number to be subtracted and then adding)

We know, to add a negative number to a negative number, the numbers should be added and negative sign should be attached to the sum obtained.

= -9

Therefore, (-7) – (+2) = -9


(iv) Evaluate (-9) – (-6)

= (-9) + (+6)    (charging the sign of the number to be subtracted and then adding)

On subtracting smaller number 6 from bigger number 9; we get 9 – 6 = 3

As the sign of bigger number is negative (-)

= -3

Therefore, (-9) – (-6) = -3









6th Grade Math Practice

From Subtraction of Numbers without using Number Line 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

  1. Worksheet on Money | Conversion of Money from Rupees to Paisa

    Dec 03, 24 01:29 AM

    Worksheet on Money
    Practice the questions given in the worksheet on money. This sheet provides different types of questions where students need to express the amount of money in short form and long form

    Read More

  2. 2nd Grade Money Worksheet | Conversion of Money | Word Problems

    Dec 03, 24 01:19 AM

    Match the following Money
    In 2nd grade money worksheet we will solve the problems on writing amount in words and figures, conversion of money and word problems on money. 1. Write T for true and F for false. (i) Rs. is written…

    Read More

  3. Subtraction of Money | Subtraction with Conversion, without Conversion

    Dec 02, 24 01:47 PM

    Subtraction of Money
    In subtraction of money we will learn how to subtract the amounts of money involving rupees and paise to find the difference. We carryout subtraction with money the same way as in decimal numbers. Whi…

    Read More

  4. Word Problems on Addition of Money |Money Word Problems|Money Addition

    Dec 02, 24 01:26 PM

    Word Problems on Addition of Money
    Let us consider some of the word problems on addition of money. We have solved the problems in both the methods i.e., with conversion into paise and without conversion into paise. Worked-out examples

    Read More

  5. Addition of Money | Add The Amounts of Money Involving Rupees & Paisa

    Nov 29, 24 01:26 AM

    3rd Grade Addition of Money
    In addition of money we will learn how to add the amounts of money involving rupees and paisa together. We carryout with money the same way as in decimal numbers. While adding we need to follow that t…

    Read More