2010_Solutions_Grades 1-2-2010_Solutions

2010_Solutions_Grades 1-2
Pdf Summary
The provided document is a set of solutions for the Math Kangaroo 2010 competition for Levels 1 and 2, organized by Math Kangaroo in the USA. Each math problem is followed by detailed solution suggestions, explaining the logic or calculations needed to arrive at the correct answer. Here is a brief summary of some covered problems and their solutions:<br /><br />1. **Problem 1**: An option selection based on arrangement of digits.<br />   - Correct answer: C, specific strategic rearrangement required.<br /><br />2. **Problem 2**: Counting toys on shelves.<br />   - Correct answer: C, involves accurate counting.<br /><br />3. **Problem 3**: Calculate number of pairs from children.<br />   - Correct answer: C, pairs calculated by dividing total children by two.<br /><br />4. **Problem 6**: Future age calculation based on current age.<br />   - Correct answer: A, age of 17 by adding 10 years to current age.<br /><br />5. **Problem 9**: Determining the day in future based on given data.<br />   - Correct answer: D, calculated using day intervals and dates.<br /><br />6. **Problem 13**: Calculating number of guests at a party.<br />   - Correct answer: B, subtracting empty seats from total and deducting one for the host.<br /><br />7. **Problem 18**: Calculating total candy pieces.<br />   - Correct answer: C, addition of individual candies held by each sibling.<br /><br />8. **Problem 19**: Compute intermission length based on total playtime.<br />   - Correct answer: C, subtraction of play time from total interval.<br /><br />9. **Problem 22**: Determining the number of houses between two locations.<br />   - Correct answer: B, uses subtraction of house counts on either side.<br /><br />10. **Problem 24**: Determine who ate the most apples in a contest.<br />    - Correct answer: A, logic based deduction from given conditions.<br /><br />These solutions utilize basic arithmetic and logical reasoning suitable for early-grade students, providing a comprehensive understanding of problem-solving in math contests.
Keywords
Math Kangaroo 2010
Levels 1 and 2
math problems
solutions
arithmetic
logical reasoning
USA
problem-solving
early-grade students
math contest