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Grades 5-6 Video Solutions 2025
2025_5-6_20
2025_5-6_20
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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
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