Decimals - Adding Decimals (Crossing the Whole) - Starter

In an engaging mathematics starter activity for Year 5 students, they are presented with a variety of problems that require a good understanding of basic arithmetic and number properties. The tasks are designed to help students become more fluent in mathematics, with a focus on revision and consolidation of previously learned concepts. One of the exercises involves simple division, such as dividing 72 by 9, and another challenges students to find half of a number after dividing it by six. Additionally, students are tasked with identifying the sum that equals 1 and filling in a Venn diagram to determine the common factors of two given numbers, enhancing their understanding of factors and how to compare them.

The worksheet further encourages students to apply their knowledge of division and multiplication through the use of a bar model, a visual tool that helps to represent mathematical concepts more clearly. For instance, they might need to find out what 7/4 of 112 is or calculate the product of two numbers. Another interesting activity is finding the complement to 1 for a given decimal number, which requires students to think about the relationship between numbers and how they can be combined to make a whole. The common factors of 24 and 18, such as 1, 2, 3, and 6, are also to be identified, demonstrating the practical application of finding factors in solving mathematical problems. These exercises not only test the students' ability to perform calculations but also deepen their understanding of numbers and how they interact.