2025_Solutions_Grades 1-2-2025Solutions12AK-AOG011825

2025Solutions12AK-AOG011825
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The Math Kangaroo USA 2025 document provides solution suggestions for Grades 1 and 2 based on their contest problems. Below is a brief summary of the solutions provided:<br /><br />1. Pablo has 64 balloons left after giving away 2 out of an initial set, assumed to be 66.<br />2. A specific piece (E) fits into a shape puzzle, determined by trial and elimination.<br />3. Six triangles are counted in a given diagram, defined by closed shapes with three straight sides.<br />4. Baby Kangaroo A takes the shortest path with 13 hops by considering path segment lengths.<br />5. There are 8 pencils, based on counting either the number of pencil tips or erasers.<br /><br />The document continues with more problem solutions:<br /><br />6. Six squares are missing in a puzzle to complete it.<br />7. Toy shelf without a robot, rabbit, or turtle is identified as Michael's.<br />8. A rotated version of Carla's button is option E.<br />9. Six cubes are not in contact with any rubber bands in a two-layer setup.<br /><br />Further:<br /><br />10. Four tiles are covered by exactly three mats.<br />11. Key (D) fits a specific keyhole shape.<br />12. Each chocolate bar costs 4 euros, deduced from given totals.<br />13. Three oranges remain after Vera removes pears and apples.<br />14. Three students stand between Warren and Victor.<br />15. After two moves, the black book ends up first in sequence.<br />16. Arrangement of pieces is analyzed to match a view from the front and back.<br />17. Six white beads are hidden, considering patterns under boxes.<br />18. Each chocolate bar costs 4 euros, calculated from Tom's buying pattern.<br /><br />The complexity includes logic deducing odd and even combinations:<br /><br />19. Zebra toy is left out to maintain even sum pairings.<br />20. Ben is currently 5 years old by age difference calculation.<br />21. Possible ladybug dot configurations are tested to complete a grid.<br />22. Seven white cubes exist in a layered cube structure.<br />23. Red must be chosen for a specific box based on color distribution guidelines.<br />24. Worst-case scenario analyzed indicates 11 coins ensure a white ball is obtained from a machine.<br /><br />Overall, the solutions focus on logical deduction and pattern recognition, encouraging critical thinking among participating students.
Keywords
Math Kangaroo USA 2025
Grades 1 and 2
balloon problem
shape puzzle
triangle counting
pathfinding
pencil counting
missing squares
toy identification
button rotation