Missing Number in Addition

The basic concept of finding the missing number in addition sum of one-digit number. These give us support and idea about the basic addition facts, as well as help us to understand the addition's relationship to subtraction. It also assists as an introduction to learning algebra (as the missing number could be represented by a variable or a letter). While solving the addition problems children will complete the missing addend to find the correct calculation. Now we will learn how to find missing number in addition.


What is the missing number in these addition sums?

(i) 3 + ? = 8

Follow the procedure to find the missing addend. The question given is ‘3 and how many more make 8?’ The answer is 5.

Therefore, when the number is put in the place of the question mark (?), the sum is written as 3 + 5 = 8.



(ii) ? + 2 = 6

To find the missing addend we read the question given as ‘how many more and 2 make 6?’ The answer is 4.

Therefore, when the number is put in the place of the question mark (?), the sum is written as 4 + 2 = 6.


(iii) 5 + ? = 9

To find the missing addend we read the question given as ‘5 and how many more make 9?’ The answer is 4.

Therefore, when the number is put in the place of the question mark (?), the sum is written as 5 + 4 = 9.


(iv) ? + 6 = 7

To find the missing addend we read the question given as ‘how many more and 6 make 7?’ The answer is 1.

Therefore, when the number is put in the place of the question mark (?), the sum is written as 1 + 6 = 7.





First Grade Math Activities

From Missing Number in Addition 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. Vertical Subtraction | Examples | Word Problems| Video |Column Method

    Mar 22, 25 05:20 PM

    Vertical Subtraction
    Vertical subtraction of 1-digit number are done by arranging the numbers column wise i.e., one number under the other number. How to subtract 1-digit number vertically?

    Read More

  2. Worksheet on 11 Times Table | Printable Multiplication Table | Video

    Mar 22, 25 05:08 PM

    worksheet on multiplication of 11 times table
    Worksheet on 11 times table can be printed out. Homeschoolers can also use these multiplication table sheets to practice at home.

    Read More

  3. Worksheet on 10 Times Table | Printable Multiplication Table | Video

    Mar 21, 25 03:46 PM

    worksheet on multiplication of 10 times table
    Worksheet on 10 times table can be printed out. Homeschoolers can also use these multiplication table sheets to practice at home.

    Read More

  4. 5th Grade Prime and Composite Numbers | Definitions | Examples | Math

    Mar 21, 25 12:18 AM

    5th grade prime and composite numbers

    Read More

  5. 14 Times Table | Read and Write Multiplication Table of 14| Video

    Mar 20, 25 04:03 PM

    14 Times Table
    In 14 times table we will learn how to read and write multiplication table of 14. We read fourteen times table as:One time fourteen is 14 Two times fourteen are 28 Three times fourteen are 42

    Read More