Max Maths, Year 5, Work Book, Multiplying multiples of 10 to 90 and multiples of 100 to 900 by a single-digit number

In the Max Maths Year 5 Workbook, students are given the task of multiplying multiples of 10 up to 90 and multiples of 100 up to 900 by single-digit numbers. The practice exercise requires students to expand their understanding of basic multiplication facts by scaling them up to work with larger numbers. In the first activity, students must write four multiplication facts based on the given equations. For instance, if they know that 5 × 6 equals 30, they can use this to derive related facts such as 50 × 6 equals 300 or 500 × 6 equals 3000, applying the concept that multiplying by 10 or 100 simply adds zeros to the original product.

The second part of the practice involves identifying correctly derived multiplication equations from a set of options, demonstrating comprehension of how to scale multiplication facts. For example, if 2 × 8 equals 16, then 2 × 80 must equal 160, as the multiplier has increased by a factor of 10. Students are encouraged to circle the equations that correctly apply this scaling. This exercise helps solidify their understanding of place value and the relationship between multiplication facts and their larger counterparts. The workbook provides a clear example to guide students, ensuring they grasp the concept of multiplying multiples of 10 and 100 by a single-digit number.