Four in Four - Subtraction Set C - numbers with 1 decimal place with exchanges

The 'Four in Four' activity is a fast-paced mathematical challenge designed for Year 6 students, aimed at improving their subtraction skills with numbers that have one decimal place and require exchanges. Each worksheet in the set presents four subtraction problems that students are encouraged to solve within a four-minute time frame. This exercise is not only a test of their numerical abilities but also their speed and accuracy under time pressure. The problems range from simpler calculations, such as subtracting two-digit decimal numbers, to more complex ones involving larger numbers and more significant exchanges.

The worksheets are organised into sets, each containing a series of subtraction problems that progressively increase in difficulty. For example, Sheet 1 might include problems like 68.2 minus 29.3, while Sheet 10 presents more challenging calculations such as 21918.7 minus 1159.8. The answer sheets provide the correct solutions to each problem, ensuring that students can check their work and understand where they may have made mistakes. This structured approach allows for clear progression and helps students to build confidence in their subtraction skills, particularly when dealing with decimals and the concept of borrowing or exchanging.