Rounding off is a process of approximating a number to a specified place value. In this lesson, we focus on rounding off to the nearest hundred.
We round off numbers for various reasons, such as simplifying calculations or making estimates. Rounding can help us work with more manageable numbers while still maintaining reasonable accuracy.
To determine whether to round up or down, look at the digit in the tens place. If it's 5 or greater, round up; if it's less than 5, round down. Remember, numbers ending in 5 are always rounded up.
Objective: Deepen students' understanding of number sense by using 10-frames, enabling them to recognize patterns, compare quantities, and represent numbers efficiently.
Core Competencies Developed: