How to Solve Missing Number Questions for Class 2 with Examples
Do you know the importance of missing numbers in our life? If not, then it's okay, as this article will explain everything about the missing number and the missing number worksheet for class 2. Now you must be curious about how to find the missing numbers. After reading this article and solving some missing number worksheets, you will be able to find the missing numbers in addition, and subtraction in various forms like single-digit subtraction, single-digit addition etc along with the benefits of missing number worksheets.
Missing Numbers in Addition
To find the missing digits in addition, follow the steps in the given example:
In addition, to find the missing number, just take the number you have on the left side of the ‘=’ sign and take it to the right side.
Then subtract it from the number that is on the right side. In below case, when we put 8 on the right side, we get
= 10 - 8
= 2
Hence the missing number is 2.
Missing Number in Addition
Missing Single Digit Subtraction Cases
Following the three cases of missing single digit subtraction:
Case 1: If the missing number is the difference then subtract the subtrahend from the minuend. For example:
10 - 3 = __ (Here the blank mark represents the missing number). Now, subtract 3 from the number 10 and note the answer as 7. So the missing number is 7.
The Equation in Which the Difference is Missing
Case 2: If the missing number is the subtrahend then subtract the difference from the minuend. For example:
10 - __ = 7 (Here the blank mark represents the missing number). Now, we will subtract 7 from 10 and obtain the result as 3. Thus, the missing number is 3.
The Equation in Which the Subtrahend is Missing
Case 3: If the missing number is the minuend then add the subtrahend and the difference. For example:
__ - 3 = 7 (Here the blank mark represents the missing number). We wish to add 3 with 7 and get the result as 10. Now, after adding 7 with 3, the missing number is obtained as 10.
The Equation in Which Minuend is Missing
Benefits of Missing Number Worksheets
Missing number worksheets have numerous benefits including:
One can use them to solve questions for practice.
Encourages students to learn more about numbers.
These are available in offline and online modes.
One can download missing number worksheet pdfs and work on them.
These help children in developing their interest in mathematics.
Solved Examples
Q 1. Write the missing number in the given sequence.
2, 3, 6, 4, 5, 20, __, 3, 18.
Ans: The missing number is 6. This is because a pattern between the numbers in the given series is determined, as the third digit ‘6’ is the product of the first two digits ‘2’ and ‘3’, and the sixth digit, which is ‘20’ is the product of fourth and fifth digits that is ‘4’ and ‘5’ and the ninth digit ‘18’ is the product of the seventh digit ‘6’ and eighth digit ‘3’
Therefore, the seventh digit should be “6”.
Q 2. Replace _ with the correct digit in __67 + 132 = 399
Ans: Follow the given steps to solve the problem:
Write the given expression: __67 + 132 = 399
Now, take 132 to the right-hand side and subtract from 399, i.e. 399 - 132
So, 399 - 132 = 267
Equate the difference of these numbers to __67 and get the final answer as 2
Thus, the digit at the place of the blank space will be 2.
Practice Problems
Q 1. Find the missing digit in the subtraction of 4530 - 23__5 = 2155.
Ans. 7.
Q 2. Calculate the missing digit in the addition of 61__0 + 1352 = 7482.
Ans. 3.
Q 3. Find the missing digit in 7__31 - __365 = 3866.
Ans. 2 and 3.
Missing Number Worksheets
Below is missing number worksheets for class 2:
Missing Number Worksheet for Class 2
Summary
Missing numbers are the numbers that have been missed in a given series of a number or digits with similar differences among them. The method of filling in these missing numbers is finding similar changes or rules between those numbers and filling in the missing terms in the specific series and places. You can also find the missing digits by identifying the pattern of the sequence. Keep practising and solving the missing digits worksheets for class 2. You can also download the missing number worksheet PDFs over the internet.
FAQs on Missing Number Worksheets for Class 2 Students
1. What is a missing number worksheet for Class 2?
A missing number worksheet for Class 2 is a maths practice sheet where students fill in the blank numbers in number sequences or equations. These worksheets usually include:
- Counting forward and backward (e.g., 45, 46, __, 48)
- Simple addition and subtraction problems (e.g., 12 + __ = 20)
- Number patterns and sequences
2. How do you solve missing number problems in Class 2 maths?
To solve missing number problems, find the pattern or use the inverse operation to calculate the unknown number.
- Step 1: Read the full number sequence or equation carefully.
- Step 2: Identify what operation is used (addition, subtraction, counting).
- Step 3: Use counting or the opposite operation to find the missing value.
3. How do you find a missing number in addition for Class 2?
To find a missing number in addition, subtract the known number from the total sum.
- Formula: If a + __ = c, then missing number = c − a
- 14 − 9 = 5
4. How do you find a missing number in subtraction for Class 2?
To find a missing number in subtraction, use addition to check the difference.
- If __ − 6 = 10, then missing number = 10 + 6
- 10 + 6 = 16
5. What are some examples of missing number sums for Class 2?
Here are simple missing number examples for Class 2:
- 23, 24, __, 26 → Missing number is 25
- 7 + __ = 12 → Missing number is 5
- __ − 4 = 9 → Missing number is 13
6. Why are missing number worksheets important for Class 2 students?
Missing number worksheets are important because they strengthen number sense and basic arithmetic skills. They help students:
- Understand number order and sequences
- Practice addition and subtraction facts
- Develop logical thinking and problem-solving skills
7. How do you solve missing numbers in a number sequence?
To solve missing numbers in a number sequence, identify the pattern between the numbers.
- Check the difference between two known numbers.
- See if the pattern is +1, +2, −1, or another fixed number.
- 35 − 30 = 5, so the pattern is +5
- 35 + 5 = 40
8. What is the easiest way to teach missing numbers to Class 2?
The easiest way to teach missing numbers is by using a number line and counting method. Teachers can:
- Draw a number line to show jumps forward or backward
- Use objects like beads or blocks for counting
- Practice simple addition and subtraction facts daily
9. What are common mistakes in missing number problems?
Common mistakes in missing number problems include using the wrong operation or misreading the sequence. Students often:
- Add instead of subtract (or vice versa)
- Ignore the pattern in number sequences
- Make counting errors
10. Can you give a word problem with a missing number for Class 2?
Yes, a missing number word problem asks students to find an unknown value in a story-based question. Example:
- Riya has 8 candies. She buys some more and now has 15 candies. How many did she buy?
- 15 − 8 = 7
