Max Maths, Year 2, Work Book, Addition pairs to 100

The Max Maths Workbook for Year 2 provides a variety of exercises to help children strengthen their understanding of addition. In the section titled "Practice 2: Addition pairs to 100," students are tasked with completing a series of addition sentences where the sum equals 100. This activity not only reinforces the concept of addition but also familiarises students with the idea of complementary numbers—numbers that add up to a certain total, in this case, 100. For example, they are asked to find the missing number in the equation 70 + __ = 100, which helps them identify that 30 is needed to make the total 100. The exercise includes various combinations, ensuring that students are able to practice and apply this concept with different starting numbers.

Furthermore, the workbook challenges students to explore the relationship between addition and subtraction by writing down the 'addition and subtraction families' for given facts. This exercise is designed to help children understand the inverse relationship between the two operations. For instance, if they know that 30 + 70 equals 100, they can also deduce that 100 - 30 equals 70, and similarly, 100 - 70 equals 30. By working through these problems, students become more confident in their ability to manipulate numbers within 100 and develop a solid foundation for mental arithmetic and problem-solving skills.