Unit 6 · Algebra
◆+⬡=6, Both>0 — Biggest |◆−⬡|?
Lesson 10 of 12
About this lesson
Six cards (8, ◆, 4, 5, ⬡, 2) sum to 25. Known sum = 19, so ◆ + ⬡ = 6. Both > 0. Possible pairs: (1,5), (2,4), (3,3), (4,2), (5,1). Max difference = 4. Option E (6) traps students who use (6,0) — forgetting both must be greater than zero.
Chapters
Question
The sum of the six number cards below is 25.
◆ and ⬡ represent two whole numbers that are greater than zero.
The six cards are: 8, ◆, 4, 5, ⬡, 2
What is the largest possible difference between ◆ and ⬡?
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