Decimals - Adding Decimals (Crossing the Whole) (1) - Worksheet

The worksheet from masterthecurriculum.co.uk is designed to enhance Year 6 students' fluency and precision when adding decimals, especially when the sum crosses a whole number. The resource utilises a place value grid which is divided into ones, tenths, hundredths, and thousandths to support students in solving decimal addition problems. For example, students are asked to add decimals such as 0.532 and 0.522 together by placing each decimal digit in the correct column of the place value grid. This visual method helps students to align the digits correctly and to understand the process of carrying over when sums exceed the value of ten in a given place value column.

The worksheet progresses to more challenging sums, such as adding 0.677 and 0.554, and includes the use of complements to one, which is another strategy for adding decimals. This technique involves understanding how much more is needed to make a whole number from a decimal. For instance, when adding 0.65 and 0.57, students would recognise that 0.65 needs an additional 0.35 to make 1, and then they would add the remaining 0.22 from 0.57. The answers to these calculations are provided at the end of the worksheet, with solutions such as 1.054, 1.279, and 1.569, demonstrating the crossing of a whole number. This exercise is part of Lesson 4 (Part 1) in a series that focuses on adding decimals and is intended to build confidence and accuracy in students' mathematical abilities.