Max Maths, Year 4, Try it, Addition of 3-digit numbers using regrouping and column method

In the 'Try it' section of Max Maths for Year 4, students are encouraged to practice their addition skills by adding together 3-digit numbers. This exercise focuses on using regrouping and the column method, two fundamental techniques for performing addition with larger numbers. The students are presented with a series of equations to solve:

• (a) 747 + 236
• (b) 573 + 289
• (c) 675 + 238
• (d) 509 + 674

Each sum requires careful alignment of the digits in columns, ensuring that ones, tens, and hundreds are each in their respective places. When the sum of a column exceeds 9, students must carry the extra value to the next column on the left, practicing the concept of regrouping. This helps to build a strong foundation in arithmetic that will be essential for more complex mathematical operations.

Following the 'Try it' exercise, the 'Let's Practise' section offers additional problems for the students to complete, this time with an emphasis on showing their working. Problems such as:

• (a) 987 + 223
• (b) 75 + 555

require students to demonstrate their understanding of the column method and regrouping by writing out each step of their calculations. This not only reinforces the process of addition but also helps teachers assess the students' grasp of the concept. To further their practice, students are directed to workbook pages 38 to 42, which likely contain more exercises and possibly explanations or examples to guide them through the process of addition using these methods.