Math Problem Statement

请帮我解答以下问题:小明有5个苹果,小红有7个苹果,小明给了小红2个苹果后,他们两人各有多少个苹果?

Solution

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Math Problem Analysis

Mathematical Concepts

Basic Arithmetic
Addition
Subtraction

Formulas

Subtraction: a - b
Addition: a + b

Theorems

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Suitable Grade Level

Grades 1-3