Day 4 of 30
Round to nearest 10, 100, and 1000
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Learning Objective
Students will be able to round to nearest 10, 100, and 1000.
In this lesson, we'll explore how to round to nearest 10, 100, and 1000. Mathematical thinking develops logical reasoning and problem-solving abilities.
Rounding means changing a number to a nearby number that's easier to work with. We round to the nearest 10, 100, 1000, etc. The rule: If the digit to the right is 5 or more, round up. If it's 4 or less, round down. For example, 47 rounds to 50 (because 7 ≥ 5), but 43 rounds to 40 (because 3 < 5). The rounded number keeps place value zeros. Rounding helps with estimation and mental math!
As you work through today's material, pay attention to the examples and try to identify the patterns or strategies being used. This will help you apply these concepts to new problems.
Take notes on key points and make connections to what you've already learned in previous lessons.
A mathematical question requiring analysis and solution
The result obtained by solving a problem
Instructions
Materials Needed
- Notebook
- Calculator (if needed)
- Graph paper
Round 47 to the nearest 10.
Round 834 to the nearest 100.
Round 3,762 to the nearest 1,000.
Teaching Tip
For this age group: Balance direct instruction with collaborative activities. Allow students to explain their thinking and make connections to prior knowledge when exploring round to nearest 10, 100, and 1000.