Find 10 or 100 more or less worksheet

The worksheet aims to help children develop their numerical fluency by learning to find 10 or 100 more or less than a given number. This fundamental mathematical skill is crucial for building a solid foundation in number sense and arithmetic operations. The objectives are clear and straightforward, enabling children to focus on the task of manipulating numbers with confidence and accuracy.

Activity 1 of the worksheet is an interactive exercise where children use digit cards, whiteboards, and pens to practice adding or subtracting 10 or 100 from a displayed number. The instructor will choose a value (10 or 100) and a mathematical operation (plus or minus), then show a digit card to the class. For instance, if the instructor says "10 plus" and displays the number 56, the children should write "66" on their whiteboards. This activity can be varied by giving the answer and asking the students to determine the starting number, enhancing their problem-solving skills and understanding of inverse operations.

Activity 2 further challenges the children by incorporating two operations at once, such as "+10" and "-100". After selecting a digit card and showing it to the class, the children must apply both operations to the displayed number and write the final answer on their whiteboards. For example, if the instructor says "+10 and -100" and shows the number 516, the correct response would be 426. This exercise encourages children to think critically and apply their knowledge of place value and number operations in a compound manner.