This math worksheet presents an exciting opportunity for students to practice the expanded form of two-digit numbers. The first section involves converting from standard form into its expanded equivalent, while the second reverses the process. This activity will effectively enhance first graders' understanding of place values, preparing them for future complex calculations involving three-digit numbers.

Expanding a number like 46 into an expanded form means breaking it down to show the value of each digit. Think of 46 as having two parts: 40 and 6. The digit 4 is in the tens place, representing 40 (because 4 tens are 40). The digit 6 is in the ones place, which simply means 6. So, when we write 46 in expanded form, we write it as 40 + 6. This helps us see how much each digit is worth.

Learning about expanded forms of 2-digit numbers is crucial for students because it enhances their number sense and foundational understanding of the place value system. By decomposing numbers into their tens and ones components, students gain a clearer insight into how numbers are structured and related.