How to Solve Missing Number Addition Problems with Whole Tens
FAQs on Class 2 Maths Worksheet: Adding Whole Tens with 4 Addends and Missing Numbers
1. What is a missing addend?
A missing addend is the unknown number in an addition problem that you need to find to complete the sum. For example, in the problem 20 + 30 + __ + 10 = 80, the blank space represents the missing addend. To find it, you first add the known numbers and then subtract that total from the final answer.
2. How do you solve missing number addition?
To solve a missing number addition problem, you should follow two simple steps. This method is perfect for solving sums with 4 addends.
- Step 1: First, add all the numbers (addends) that are given in the problem.
- Step 2: Next, subtract this sum from the final total (the number after the '=' sign). The result is the missing number.
3. What are 4 addends in math?
In math, having 4 addends means you are adding four different numbers together to find a single total. An example of a 4 number sum is 10 + 20 + 30 + 40 = 100. This worksheet provides practice in adding four whole tens, sometimes with a missing number to make it more challenging for Class 2 students.
4. How can I teach the addition of whole tens?
Teaching the addition of whole tens is easier when you connect it to single-digit addition. For example, to solve 40 + 50, a child can first solve 4 + 5 = 9 and then add a zero at the end to get 90. This strategy reinforces the concept of place value and is a key part of the Grade 2 math syllabus.
5. Is this a free printable addition worksheet for Class 2?
Yes, this is a free printable addition worksheet for Class 2, available as a downloadable PDF. It is specifically designed for students to practice adding whole tens. Parents and teachers can easily print it for homework, revision, or extra math practice at home.
6. What skills does this Class 2 addition worksheet build?
This worksheet helps Grade 2 students develop several key mathematical skills beyond basic addition. The main benefits include:
- Mental Math: Encourages quick calculation of tens in your head.
- Problem-Solving: The missing number problems require logical thinking.
- Computation Skills: Improves speed and accuracy in multi-step addition.
- Place Value: Strengthens the understanding of the tens place in 2-digit numbers.
7. What are 'whole tens' in this math worksheet?
Whole tens are numbers that are multiples of 10, meaning they always end in a zero. For a Class 2 student, these are numbers like 10, 20, 30, 40, 50, 60, 70, 80, and 90. This worksheet focuses entirely on adding these numbers to build foundational addition skills.
8. Is this worksheet suitable for practicing 2-digit addition?
Yes, this worksheet is an excellent first step for practicing 2-digit addition. By focusing on whole tens, it allows students to master adding numbers in the tens place without the added complexity of regrouping (carrying over). It builds a strong base for more advanced multi-digit addition.
9. How does finding a missing addend help in math learning?
Finding a missing addend introduces students to algebraic thinking by solving for an unknown. It helps them understand the relationship between addition and subtraction. For example, to solve 40 + __ = 90, they learn that they can also think of it as 90 – 40, which deepens their overall number sense and computation skills.
10. Does this worksheet include an answer key?
Yes, an answer key is typically included with our practice worksheets. This allows parents and teachers to quickly check the answers and provide immediate feedback to the student. Having an answer key makes it a reliable resource for both classroom and at-home learning.

















