Grades 3-4 Video Solutions 2021-video 2021 3-4/18

Video Transcription

Video Summary

The teacher needs to rearrange seven cards so the sums of the top and bottom rows are equal by flipping one card. The current sums are 31 for the top row and 35 for the bottom row, with a difference of 4. To equalize, the top row needs 2 added, and the bottom row needs 2 subtracted. The card with a difference of 2, where the smaller number is on top, is card G (4 and 2). By flipping it, both rows will have a sum of 33. Therefore, the correct card to flip is card G.

Keywords

card flipping

equal sums

math puzzle

card G

rearranging cards