Grade 3 - Arithmetic: Understanding and writing numbers
Standard 3.ARTU.1.1.5 - Analyze place value equations with hundreds, thousands and millions to find which is correct.
Included Skills: Number Properties, Addition
Composes and decomposes a natural number in a variety of ways (e.g. 123 = 100 + 23, 123 = 100 + 20 + 3, 123 = 50 + 50 + 20 + 3)