Numerical Expressions Involving Whole Numbers

This topic will discuss about numerical expressions involving whole numbers. In numerical expressions there will be various operations that are to be performed like addition, subtraction, multiplication and division. We know that whole numbers are positive integers including zero. Therefore, we would follow the BODMAS rule in solving the numerical expressions involving whole numbers.

We have learnt in previous subtopics the meaning of the extended meaning of BODMAS.

B = Brackets

O = Of

D = Divison

M = Multiplication

A = Addition

S = Subtraction

Here are few examples to illustrate numerical expressions involving whole numbers following BODMAS rule:


1. 20 + 10 × 60 ÷ 6 + 3

Solution:

20 + 10 × 60 ÷ 6 + 3

= 20 + 10 × 10 + 3

= 20 + 100 + 3

=123


Explanation:

We will first do division (i.e. 60/6 = 10), then multiplication (i.e. 10 multiplied by 10 = 100), then followed by addition. Then we will add 20, 100 and 3 to get the final answer as 123. 


2. 56 ÷ 8 + 23 – 8 × 0

Solution:

56 ÷ 8 + 23 – 8 × 0

= 7 + 23 – 8 × 0

= 7 + 23 – 0

= 30 – 0

= 30

Explanation:

We will first divide 56 by 8 to get 7 then we will do multiplication that is 8 multiplied by 0 is 0 leaving the addition and subtraction part as it is. Now we have 7 + 23 – 0, so we will first add 7 and 23 to get 30 and then subtract 0 from it to get 30 as final answer.


3. 3 × 4 ÷ 2 + 6 – 7 × 1

Solution:

3 × 4 ÷ 2 + 6 – 7 × 1

= 3 × 2 + 6 – 7 × 1

= 6 + 6 – 7

= 12 – 7

= 5

Explanation:

First carry out division (i.e. 4 divided by 2), then there are two operation on multiplication. We will complete those two multiplication first after the division leaving other addition and subtraction as it is. After completing the two multiplication we have 6 + 6 – 7. We will first add both the 6’s to get 12 then subtract 7 from it. The final result is 5.


4. 78 +26 – 23 × 0 + 49 of 7 ÷ 49

Solution:

78 + 26 – 23 × 0 + 49 of 7 ÷ 49

= 78 + 26 – 23 × 0 + 343 ÷ 49

= 78 + 26 – 23 × 0 + 7

= 78 + 26 – 0 +7

= 78 + 26 +7 – 0

= 111 – 0

= 111

Explanation:

First do the ‘Of’ function which is actually nothing but multiplication (i.e. 49 of 7 to get 343). Then 343 is divided by 49 to get7. Next is multiplication (i.e. 23 multiplied by 0). Then followed by addition (i.e. 78 + 26 + 7 to get 111) and finally subtraction (i.e. 0 subtracted from 111 is 111).

You might like these



5th Grade Math

From Numerical Expressions Involving Whole Numbers to HOME PAGE

New! Comments

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


Recent Articles

  1. Plants Development | Definition | Leaf Development | Factors Affecting

    Apr 22, 25 02:31 PM

    Definition of development- development is a biological process which can be defined as the process in which there is sequence of qualitative changes towards a higher or more Complex state.It consists…

    Read More

  2. Differentiation, Dedifferentiation and Redifferentiation | Definition

    Apr 21, 25 01:16 PM

    Differentiation
    Cells from the root apical meristem and shoot apical meristem the camera that differentiate , mature to perform different functions. This process by which the cells undergo different major structural…

    Read More

  3. Explain about Growth in Plants |Definition of Growth & Differentiation

    Feb 27, 25 02:07 PM

    Phases of Growth
    Growth is a permanent increase in length or volume of an organism that brought upon by an increase in its dimensions due to synthesis of new protoplasmic material.

    Read More

  4. Definition of Respiratory Quotient | calculation | Application | Plant

    Dec 02, 24 12:09 AM

    Definition of respiration quotient- the ratio of the carbon-dioxide evolved to that of the oxygen consumed by a cell, tissue, plants or animals in a given time is called respiratory quotient. It is us…

    Read More

  5. Amphibolic Pathway | Definition | Examples | Pentose Phosphate Pathway

    Jun 06, 24 10:40 AM

    Amphibolic Pathway
    Definition of amphibolic pathway- Amphibolic pathway is a biochemical pathway where anabolism and catabolism are both combined together. Examples of amphibolic pathway- there are different biochemical…

    Read More