Multiplication and Division (2) - Multiply 4 digits by 2-digits (Basic Practice) - Presentation

In a series of educational slides designed for mastering multiplication and division, students are tasked with multiplying four-digit numbers by two-digit numbers using the long multiplication method. The lesson aims to build fluency and reasoning skills by encouraging learners to discuss and write down step-by-step instructions for solving such mathematical problems. The slides provide a structured approach to the multiplication process, beginning with basic practice exercises where students complete calculations by filling in the blanks for each step of the long multiplication.

The activities progress in complexity, offering practice problems that require students to multiply four-digit numbers by two-digit numbers and then add the products to find the final answer. For instance, multiplying 5180 by 23 involves calculating 5180 times 3 and 5180 times 20 before summing these intermediate results. The lesson also incorporates comparison activities, where students must determine the correct inequality symbols to compare the products of different multiplications. To enhance their reasoning abilities, students are presented with calculations containing errors or missing digits, which they must identify and correct. Independent work further reinforces their understanding, as they complete calculations and use their knowledge to explain the reasoning behind each step of the multiplication process.