Max Maths, Year 5, Learn together, Addition of more than 2 numbers (2)

In Max Maths for Year 5, students are encouraged to explore different strategies for addition in the context of real-life scenarios. One such scenario involves adding the number of blocks that Tya, Samir, Han, and Toby have. Tya opts for adding 20 and 7 first, which gives her 27, and then adds this to 15, resulting in a total of 42 blocks. Samir, on the other hand, combines Han's and Toby's numbers before adding Jade's, also arriving at the total of 42 blocks. This illustrates that there can be multiple correct methods to approach addition, as both Tya and Samir's techniques lead to the same correct answer.

Another example provided involves calculating the total amount of money that Han, Toby, and Jade have. In this case, the chosen strategy is to add 275 and 225 first because the round numbers make it simpler to reach a sum of 500. This sum is then added to 269, yielding a total of $769. This example reinforces the concept that addition can be performed in any order (commutative property) and that sometimes combining certain numbers first can simplify the calculation process. Students are directed to workbook pages 22 to 29 to further practice and consolidate their understanding of these addition strategies.