Grade 2 - Arithmetic: Understanding and writing numbers
Standard 2.ARTU.1.1.5 - Practice solving subtraction sentences to make a specific number up to 20.
Included Skills: Subtraction, Number Properties
Composes and decomposes a natural number up to 1000 in a variety of ways (e.g. 123 = 100 + 23, 123 = 100 + 20 + 3, 123 = 50 + 50 + 20 + 3, 123 = 50 + 30 - 7, 123 = 2 — 60 + 3)