Lesson Plans SET B for Grades 3-4-Homework Level 3-4 Lesson 1

Homework Level 3-4 Lesson 1 - Introduction

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This document appears to be a math homework assignment intended for a Math Kangaroo class aimed at levels 3-4. It features five problems along with their solutions that are designed to challenge students' problem-solving skills.<br /><br />1. **Password Code Problem**: The first question asks students to determine how many three-digit combinations can be made using only the numbers 2 or 5. The solution, calculated as \(2^3\), is 8 possible codes.<br /><br />2. **Alien Head Counting Problem**: The second problem involves counting the total number of heads among a specific mix of aliens on a spaceship—2 green aliens with 3 heads each, 3 purple ones with 1 head each, and 2 red ones with 4 heads each. The combined total is 17 heads.<br /><br />3. **Statement Analysis on Number 909**: Students are tasked with identifying which statement about the number 909 is false. The correct identification of the false statement is d, since not all digits are different in the number 909.<br /><br />4. **Hat and Sunglasses Problem**: This problem requires determining how many friends in a group of 10 are wearing neither sunglasses nor a hat. With 2 wearing both, 3 just sunglasses, and 3 just a hat, the solution is that 2 friends wear neither.<br /><br />5. **Pepper Counting Problem**: Involving some arithmetic steps, students are asked to find out how many peppers Peter Piper originally had after a series of transactions (giving away and acquiring peppers) to end up with 7. The solution is that he started with 12 peppers.<br /><br />Overall, the questions focus on basic arithmetic, logical reasoning, and problem-solving skills typical for mathematical exercises at this educational level.

Keywords

Math Kangaroo

problem-solving

arithmetic

logical reasoning

password combinations

alien counting

number analysis

hats and sunglasses

pepper counting

math homework