2017_Solutions_Grades 3-4-Levels 3&4 Video Solutions 2017

Levels 3&4 Video Solutions 2017

Pdf Summary

The document contains solutions to the Math Kangaroo in USA 2017 contest, a competitive mathematics examination. Below is a brief summary of some of the problem solutions detailed in the text:<br /><br />1. <strong>Puzzle Choice:</strong> The puzzle that fits must start with 5 and the second operation must equal 2, so the correct choice is (E).<br /><br />2. <strong>Kangaroo Count:</strong> John sees half of 12 kangaroos, confirmed through an illustration process.<br /><br />3. <strong>Grid Puzzle:</strong> The picture not covered by a black square is a butterfly found by sliding transparent grids.<br /><br />4. <strong>Footprints Image:</strong> Identifying mismatches between images; the upside-down picture contains one footprint set that doesn’t repeat.<br /><br />5. <strong>Hidden Panda Number:</strong> Completing the calculation gives the hidden number as 16.<br /><br />6. <strong>Grid Sums Calculation:</strong> Calculating sums with added constants yields a box sum of 16.<br /><br />7. <strong>Four-Sided Pieces:</strong> Finding all pieces that have exactly four sides results in 4 accordingly marked in a diagram.<br /><br />8. <strong>Necklace Untangling:</strong> Describing the position of untangled beads that matches option (A).<br /><br />9. <strong>House Observation:</strong> Observing the chimney’s position and the lack of a door leads to the choice of house (E).<br /><br />10. <strong>Square Matching Statement:</strong> Simplifying matching visual components leads to the conclusion that only (E) holds true.<br /><br />The document also contains diagrams and illustrations that explain calculations and logical reasoning necessary for solving various problems, as well as the educational purpose of exercises—improving problem-solving and mathematical deduction skills.

Keywords

Math Kangaroo

USA 2017

competitive mathematics

problem solutions

puzzle choice

kangaroo count

grid puzzle

footprints image

hidden panda number

necklace untangling