Math Grade 2 Quiz addition and subtraction strategies work, using place value and the properties of operations-2.NBT.B.9

CCSS.MATH.CONTENT.2.NBT.B.9 This Common Core State Standard (CCSS) for Mathematics focuses on the understanding of addition and subtraction strategies, specifically through the lens of place value and properties of operations. At this level, students learn about the structure and importance of the base-10 number system. They explore how numbers are represented using tens and ones and how these representations can be used to perform addition and subtraction efficiently. This standard also emphasises the properties of operations (such as the commutative and associative properties) and how these properties can aid in computation.