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Add 3-digit and 2-digit numbers | Year 4 Mathematics PDF Download

Understanding Column Addition

  • Column addition is a valuable technique used to add numbers ranging from 2-digit to 3-digit numbers. Let's explore this method through examples to grasp the process effectively.
  • When performing column addition, it's crucial to follow a structured approach by focusing first on the ones column, then the tens column, and finally the hundreds column.

Examples

Example 1: What is 531 + 93?
Sol:

Add 3-digit and 2-digit numbers | Year 4 Mathematics

  • Start with the ones column. 1 + 3 = 4.
    Add 3-digit and 2-digit numbers | Year 4 Mathematics
  • Move to the tens column. 3 + 9 = 12.
    Add 3-digit and 2-digit numbers | Year 4 Mathematics
  • Finally, address the hundreds column. Since we carried over from the previous step, we calculate 5 + 1 = 6. Thus, the answer is: 531 + 93 = 624. 

Example 2: What is 237 + 22?
Sol: 

Add 3-digit and 2-digit numbers | Year 4 Mathematics

  • Start with the ones column and add the numbers: 7 + 2 = 9.
    Add 3-digit and 2-digit numbers | Year 4 Mathematics
  • Next, move to the tens column: 3 + 2 = 5.
    Add 3-digit and 2-digit numbers | Year 4 Mathematics
  • Finally, move to the hundreds column. There is nothing to add to the 2, so it stays as 2. Therefore, the answer is 259.
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FAQs on Add 3-digit and 2-digit numbers - Year 4 Mathematics

1. How do UK schools typically teach students to add 3-digit and 2-digit numbers?
Ans. UK schools often use a variety of methods to teach students how to add 3-digit and 2-digit numbers, including using concrete manipulatives, visual aids, and practice worksheets to help students understand the concept.
2. What are some common strategies that UK schools use to help students master adding 3-digit and 2-digit numbers?
Ans. Some common strategies used in UK schools include breaking down the numbers into place value, regrouping when necessary, and practicing mental math techniques to improve students' addition skills.
3. Are there any specific resources or tools that UK schools use to assist students in learning how to add 3-digit and 2-digit numbers?
Ans. UK schools often utilize online educational platforms, interactive games, and math apps to provide additional practice and reinforcement for students learning how to add 3-digit and 2-digit numbers.
4. How do UK schools assess students' understanding of adding 3-digit and 2-digit numbers?
Ans. UK schools typically assess students' understanding of adding 3-digit and 2-digit numbers through quizzes, tests, and problem-solving activities that require students to apply their knowledge in real-world scenarios.
5. What are some common challenges that students face when learning how to add 3-digit and 2-digit numbers in UK schools?
Ans. Some common challenges that students may face include difficulty understanding place value, confusion with regrouping, and struggling to memorize addition facts. Teachers in UK schools often provide extra support and practice opportunities to help students overcome these challenges.
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