Lesson 2: Column Subtraction and Problem Solving with Subtraction

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Using one-, two-, and three-digit numbers, students learn how to subtract numbers without borrowing in columns. They use their knowledge of number families to find the missing numbers in tables using addition and subtraction. Finally, students learn key words to look for in word problems that signal addition or subtraction operations.

Copyright: 2001
Grades: Gr. 3 - Gr. 5   edit