BLOG ARCHIVES - Place Value, Addition, & Subtraction

3rd Grade – Rounding Numbers

The Standards CCSS: FL BEST: TEKS: Third Grade: 3.NBT.1Use place value understanding to round whole numbers to the nearest 10 or 100. Fourth Grade: 4.NBT.3Use place value understanding to round multi-digit whole numbers to any place. Second Grade: 2.NSO.1.4Round whole numbers from 0 to 100 to the nearest 10.  Third Grade: 3.NSO.1.4Round whole numbers from

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Review place value addition and subtraction with 3rd and 4th grade students. Use place value blocks or place value disks to review addition and subtraction. Free Place Value resources for guided math groups.

Using Place Value Disks to Model Addition & Subtraction

It’s the beginning of third grade and you’re working on addition and subtraction word problems. Everything seems to be going well, and you feel confident moving on to multiplication and division. The problem? Your students are given an addition and subtraction problem to solve during their morning work and several students get the incorrect answer. Why?

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Subtraction Strategies - Compensation - Upper elementary place value lesson, pictures, and resources

Compensation Strategy: Subtraction

In the previous blog post, we talked out how the compensation strategy can help students create simpler addition problems, you can view the blog post about it here. Today, let’s look at how this strategy works in subtraction. Example 1: 800 – 254 You take 1 from 800 and get 799 You then take 1

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Addition Strategies - Compensation - Upper elementary place value lesson, pictures, and resources

Addition Strategy: Compensation

Let’s talk about compensation. This is a strategy where you manipulate numbers to create friendly numbers. These friendly numbers are easier to add. Example 1: 87 + 399 You take 1 from 87 and move it to 399 Now you have 86 + 400 86 + 400 = 486 You’ve now made a simpler problem

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Save time with digital math centers. Use interactive digital slides during math workshop block. They make the perfect technology center. These math centers cover all math standards.

Why You Should Use Digital Math Centers

I know exactly how you feel. You have a million things to do, and you can’t imagine adding one more thing to your to-do list. You tell yourself that one day you’ll make time to learn all about these digital resources. Just not today. That was me … for about 2 years.  What changed? There

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