Unit 2 · Number Theory
Multiples Under 50 — Largest Minus Smallest
Lesson 3 of 18
About this lesson
Kim’s multiples of 5 (0–50): largest = 45. Jamie’s even multiples of 7 (0–50): 14, 28, 42 — smallest = 14. Difference = 45 − 14 = 31.
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Question
Kim and Jamie each think of a different whole number that is greater than zero and less than 50.
Kim’s number is a multiple of 5.
Jamie’s number is an even number which is a multiple of 7.
What is the difference between the largest possible value of Kim’s number and the smallest possible value of Jamie’s number?
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