2018_Solutions_Grades 3-4-2018_Solutions

2018_Solutions_Grades 3-4
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The Math Kangaroo 2018 solution suggestions document provides detailed answers for a variety of math problems aimed at Levels 3 and 4. Here's a concise summary of the solutions:<br /><br />1. **Problem 1**: Count only different digits in the date, giving a total of 6 different digits.<br />   <br />2. **Problem 2**: The arrows path shows 6 balloons are hit.<br />   <br />3. **Problem 3**: Adding ages given as 6 years, results in an answer of 18.<br /><br />4. **Problem 4**: Screw 5 is the short screw, identified by its visibility compared to others.<br />   <br />5. **Problem 5**: Sophie's wing dot pattern is unique in option D.<br />   <br />6. **Problem 6**: Unfolded paper results in a circle having a half-circle pattern when folded.<br /><br />7. **Problem 7**: Diana scored 21 points, calculated by tallying her scored points over multiple turns.<br /><br />8. **Problem 8**: You perceive the table's right and left sides based on direction faced.<br /><br />9. **Problem 9**: A specific design can't be made suggesting an impossible pattern.<br />   <br />10. **Problem 10**: The ghost goes in the questioned spot to avoid duplicate items.<br /><br />11. **Problem 11**: Defines the use of three squares and three trapezoids to build a boat structure.<br /><br />12. **Problem 12**: Option (E) closely matches the correct number of dots.<br /><br />13. **Problem 13**: Back-calculates the days of the week to deduce the starting day as Friday.<br /><br />14. **Problem 14**: 8 cubes will be painted following a chain arrangement calculation.<br /><br />15. **Problem 15**: The number of butterflies must be divisible by two and calculated as 4.<br /><br />16. **Problem 16**: Calculation gives the Easter-Lake distance as 33 km.<br /><br />17. **Problem 17**: Identifies the correct choice for the given conditions.<br /><br />18. **Problem 18**: Deduction reveals ball C must weigh 30 after balancing considerations.<br /><br />19. **Problem 19**: Tightening the band by four holes results in a reduction of 8 cm in length.<br /><br />20. **Problem 20**: Represents numeric value assignment in a sequence, finding all symbols.<br /><br />21 to 24: Comprises logical deduction and basic arithmetic operations to find areas or numerical values in constraints.<br /><br />These problems blend basic arithmetic, logical reasoning, and visual-spatial skills, emphasizing number manipulation, sequence identification, and contextual problem-solving within geometry and pattern puzzles.
Keywords
Math Kangaroo 2018
solution suggestions
Levels 3 and 4
math problems
arithmetic
logical reasoning
visual-spatial skills
geometry puzzles
pattern puzzles
number manipulation