Math Problem Statement

1560+390 có chia hết cho 15 không

Solution

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Math Problem Analysis

Mathematical Concepts

Divisibility Rules
Arithmetic

Formulas

Divisibility rule for 3: Sum of digits divisible by 3
Divisibility rule for 5: Last digit is 0 or 5

Theorems

Divisibility Theorem: A number is divisible by 15 if it is divisible by both 3 and 5

Suitable Grade Level

Grades 5-7

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