Day 2 | Rounding and Estimation | Type, Print or Download
For this day’s lesson: Enter answers directly in the boxes, or open the fillable student workbook (PDF). The PDF has all five days and is the recommended way to save responses. No login, public posting, or submission is required.
Important: Your answers are not submitted, stored on the website, or automatically saved. Use the browser Print command before leaving. Some browsers do not print entered field values reliably, so use the fillable PDF if you need to save or print completed answers reliably.
Direct Instruction
Rounding replaces a number with a nearby multiple of 10 or 100. Find the two nearest benchmark values and compare distances.
Worked example: 467 lies between 400 and 500. Because it is closer to 500, 467 rounds to 500 to the nearest hundred.
A nearest-ten estimate of 238 + 164 is 240 + 160 = 400. Exact calculation is 402, close to the estimate.
Guided Practice
Independent Practice: 20 Questions
Spiral Review: 4 Questions
Advanced Scholar Challenge
A family estimates three grocery items costing $18.79, $22.10 and $9.95. Round to dollars, predict the total, then find the exact total. Discuss the difference. Teacher check: Record independent answers, reasoning and any required reteaching. A quick check is not a claim of full annual grade mastery.
Next: Read the full chapter. Return to the Grade 3 learning path. Parents can access the separate answer key from the chapter page.