Find the missing number (addition and subtraction within 100) - By Khan Academy
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DESCRIPTION:
Learn how to solve missing number problems like 73 = ___ + 57.
OVERVIEW:
Find the missing number (addition and subtraction within 100) is a free educational video by Khan Academy.It helps students in grades 2 practice the following standards 2.OA.A.1.
This page not only allows students and teachers view Find the missing number (addition and subtraction within 100) but also find engaging Sample Questions, Apps, Pins, Worksheets, Books related to the following topics.
1. 2.OA.A.1 : Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.
