Lumos Video Store
This page provides a list of educational videos related to Add Tens. You can also use this page to find sample questions, apps, worksheets, lessons , infographics and presentations related to Add Tens.
Breaking apart three-digit addition problems
By Khan Academy
Learn how to add three-digit numbers by adding ones, tens, and hundreds.
Teen numbers
By Khan Academy
If we start with 10 monkeys and add 8 more, how many monkeys do we have? (This video is an introduction to the idea of a tens place.)
Math Ratios | MathHelp.com
By MathHelp.com
This lesson covers adding decimals. Students learn to add decimals by first lining up the decimal points, then adding the numbers by column. For example, to add 14.2 + 2.86, first line up the decimal points, then add the digits in the hundredths column, to get 0 + 6, or 6, then add the digits in the tenths column, to get 2 + 8, or 10, so write a 0 in the tenths column and carry the 1 to the units column, then add the digits in units column, to get 1 + 4 + 2, or 7, then add the digits in the tens column, to get 1. So 14.2 + 2.86 = 17.06.
Adding 3-digit numbers (no regrouping) | 2nd grade | Khan Academy
By Khan Academy
Sal adds 327 + 251 thinking about place value.
eSparkLearning: Adding & Subtracting within 1000 Framing Video (3NBT, Quest 3)
By espark learning videos
Adding & Subtracting within 1000 using strategies and algorithms based on place value, properties of operations
Breaking apart 3-digit addition problems | 2nd grade | Khan Academy
By
Sal shows way to break up addition problems using place value
Adding 1s or 10s (no regrouping)
By Khan Academy
Learn how to add 23 + 30 by thinking about place value.
Adding 1s or 10s (no regrouping)
By Khan Academy
Learn how to add 37 + 2 by thinking about place value.
[3.NBT.2-1.0] Fluent Add/Sub - Common Core Standard
By Freckle education
Fluently add within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.