Grades 5-6 Video Solutions 2025-2025_5-6

Video Transcription

Video Summary

Mary and Paul each wrote down three three-digit numbers using the digits 1 to 9 once. Mary aimed for the largest possible middle number by arranging her numbers in ascending order, while Paul sought the smallest possible middle number. Mary couldn't start her middle number with 9 as it would exceed her largest number. Thus, she used 867 as her maximal middle number. Conversely, Paul started with 231 as his minimal middle number. The difference between their middle numbers, 867 and 231, is 642.

Keywords

three-digit numbers

ascending order

largest middle number

smallest middle number

difference