2019 Math Kangaroo Levels 9-10 Problem #30
2019 Math Kangaroo Levels 9-10 Problem #30 30. If any digit of a given 4-digit number is deleted, the resulting 3-digit number is a divisor of the original number. How many 4-digit numbers have this property? (A) 5 (B) 9 (C) 14 (D) 19 (E) 23 Thank you for watching and please like, comment, and subscribe!

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2020 Math Kangaroo Levels 9-10 Problem #29

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