2011_Solutions_Grades 1-2-2011_Solutions_Levels

2011_Solutions_Levels_1&2

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This document provides solution suggestions for the Math Kangaroo 2011 competition for Levels 1 and 2. Below is a summary of some of the solutions:<br /><br />1. <strong>Question 1 (Answer: C) 3</strong>: The sequence is missing the number 3 when counting 1 to 5. <br /><br />2. <strong>Question 3 (Answer: D) 9</strong>: Subtracting 1 from 10, Sharon is left with 9 dolls.<br /><br />3. <strong>Question 4 (Answer: A) 12</strong>: Calculating legs on the playground: 2 boys (4 legs) plus 2 dogs (8 legs) equals 12.<br /><br />4. <strong>Question 5 (Answer: B) February</strong>: February sometimes has only 29 days due to leap years.<br /><br />5. <strong>Question 6 (Answer: B) 1</strong>: 1 candy bar is left after 7 students receive 1 bar each from a total of 8.<br /><br />6. <strong>Question 7 (Answer: C) 4</strong>: Adding digits in 2011 gives 2 + 0 + 1 + 1 = 4.<br /><br />7. <strong>Question 8 (Answer: B)</strong>: Only 1 doll has a dress, two braids, and a flower.<br /><br />8. <strong>Question 12 (Answer: B) 64</strong>: Mark’s grandmother will be 100 years old in 36 years, so now she is 64.<br /><br />9. <strong>Question 18 (Answer: D) 15</strong>: The oldest daughter is 15 years old, with ages deduced by given age differences.<br /><br />10. <strong>Question 19 (Answer: D) 4</strong>: After selling bouquets, 4 flowers remain.<br /><br />11. <strong>Question 22 (Answer: A) Anita</strong>: Based on given information, Anita eats the most apples.<br /><br />12. <strong>Question 23 (Answer: D) 12</strong>: Solving the series of arithmetic functions backward gives 12.<br /><br />These solutions involve basic arithmetic, logic, and understanding simple patterns or sequences, appropriate for the levels indicated. Each question is presented with a clear explanation supporting the answer, reflecting typical approaches for elementary math competitions.

Keywords

Math Kangaroo

2011 competition

Levels 1 and 2

solution suggestions

arithmetic

logic

patterns

elementary math

sequence

problem-solving