Grades 3-4 Video Solutions 2025-2025_3-4

Video Transcription

Video Summary

Maria arranges numbers 1 through 7 in circles such that each lower circle contains the sum of the two numbers in the connected upper circles. One circle already contains the number 6. To complete the structure, Maria deduces that the numbers 6 and 1 must pair to form the number 7 in a lower circle, while 2 and 3 must sum to 5 in another. Given that two of the numbers above the starred circle are 1 and 3, the sum, and thus the number in the starred circle, is 4. Therefore, the number in the starred circle is 4.

Keywords

number arrangement

circle puzzle

sum structure

number pairing

logic deduction