Lesson Plans SET A for Grades 7-8-Lesson 2 Level 7-8 Set A Homework

Lesson 2 Level 7-8 Set A Homework

Pdf Summary

This document provides a set of math problems aimed at practicing skills related to multiples and factors, as covered in a Math Kangaroo lesson. The problem set consists of five questions, each requiring different mathematical techniques to solve.<br /><br />1. **Product and Sum of Integers**: The challenge is to find four different positive integers whose product is 441 and to calculate their sum. The provided answer is that their sum equals 32.<br /><br />2. **Scheduling and Conflicts**: This problem involves two teachers sharing a laboratory. One uses it every fifth day, and the other every seventh day. With 180 school days a year, the task is to find how many times their schedules conflict, requiring rescheduling. According to the solution, only 5 classes need rescheduling.<br /><br />3. **Dance Competition Scores**: A pair in a dance competition receives a final score of 7.3125, determined by multiple jurors. The problem is to determine the minimum number of jurors needed for this score to be possible. The answer is 16 jurors.<br /><br />4. **Terminal Zeros in a Product**: By multiplying 2640 and 87,500, the task is to determine the number of terminal zeros in the product using factors of 10. The answer provided is 6 terminal zeros.<br /><br />5. **Divisor Properties**: The problem asks how many natural numbers fulfill the condition that out of all positive divisors other than 1 and itself, the greatest is 35 times the smallest. The answer is 3 numbers.<br /><br />The document also suggests revisiting class materials, such as notes and recordings, if needed to better understand the concepts involved.

Keywords

math problems

multiples and factors

Math Kangaroo

product and sum

scheduling conflicts

dance competition scores

terminal zeros

divisor properties

mathematical techniques

class materials