Multiply numbers by multiples of 10, 100 and 1000

The ArithmeKit from Buzzard Publishing offers a series of engaging mathematical exercises focusing on multiplying numbers by multiples of 10, 100, and 1000. This resource is designed to help students understand the concept of scaling numbers by powers of ten. In one activity, students are tasked with matching various calculations to their correct answers, such as multiplying 2.7 by 300 to get 810, or 6.4 by 800 resulting in 5,120. This exercise not only reinforces multiplication skills but also encourages students to observe patterns and relationships between numbers when they are scaled up by factors of ten.

Another section of the ArithmeKit challenges students to solve problems that involve negative numbers and to identify the value of digits up to three decimal places. Students are invited to engage in critical thinking by agreeing or disagreeing with characters named Coco and Colin, who offer different methods for solving multiplication problems. For example, to find the product of 321 and 40, Colin suggests multiplying 321 by 4 and then by 10, while Coco believes in multiplying 321 by 10 first, then by 4. The resource also includes exercises to convince Coco of the correct methods for calculations, such as proving that 3.4 times 400 is the same as 34 times 40, and that 0.71 times 6000 is not equal to 71 times 600. These activities are designed to deepen students' understanding of number manipulation and to develop their problem-solving abilities.