Max Maths, Year 3, Work Book, Halving and doubling odd and even numbers

The Max Maths workbook for Year 3 provides engaging activities to help children understand the concepts of halving and doubling two-digit numbers. Practice 2 focuses specifically on this area, beginning with an exercise where students use counting blocks to find the double of a two-digit number. The example given shows how to add two identical numbers together, such as 40 and 1, to achieve a doubled result of 82. This visual representation with counting blocks aids in reinforcing the concept of doubling and provides a clear method for students to follow.

In the next exercise, students are tasked with finding half of a two-digit number, again using counting blocks for a visual aid. The example demonstrates how to divide the number 128 into two equal parts, guiding students through the subtraction of blocks until they reach the halved amount. Further exercises involve circling groups of ten ones to regroup into tens when doubling, and similarly breaking down tens into ones when halving. This workbook also encourages hands-on learning through an activity where students grab a handful of cubes or beads and attempt to share them evenly between two groups, leading to a discussion on the characteristics of odd and even numbers, and why some numbers can be halved evenly while others cannot.