K.NBT.A.1

Compose and decompose numbers from 11 to 19 into ten ones and some further ones, e.g., by using objects or drawings, and record each composition or decomposition by a drawing or equation (such as 18 = 10 + 8); understand that these numbers are composed of ten ones and one, two, three, four, five, six, seven, eight, or nine ones.

There are 21 videos in this category and 0 videos in 0 subcategories.

Category Videos
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Ages: 7 - 10
7086 Views:
Addition with Regrouping - by StudyJams
From scholastic.com, produced by Scholastic
Sometimes when you add, you have to regroup, or carry, a group of tens.  That is why you need to line up your math problems like a pro.  Learn more about addition and regrouping with this step-by-step, interactive link from StudyJams.  A short, self-... [more]
Found by begamatt in K.NBT.A.1
June 18, 2011 at 10:32 PM
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Not Right For WatchKnowLearn
Ages: 7 - 12
7941 Views:
Relate Addition and Subtraction - by StudyJams
From scholastic.com, produced by Scholastic
Inverse operations are pairs of mathematical operations, like addition and subtraction, that can undo eachother.  You can learn how to do it by using fact families. This cartoon animation from StudyJams also includes a short, self-checking quiz.
Found by begamatt in K.NBT.A.1
June 18, 2011 at 10:26 PM
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Not Right For WatchKnowLearn
Ages: 6 - 12
6076 Views:
Regroup Ones as Tens
From eduplace.com, produced by Houghton Mifflin
Using manipulatives, students  learn to regroup, trade or change groups of 1's into 10's.  When you have more than 10 ones blocks, regroup, or change, 10 ones to 1 ten.  User clicks through the slides.
Found by tinag1974 in K.NBT.A.1
May 20, 2010 at 02:41 PM
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Not Right For WatchKnowLearn
Ages: 4 - 7
7116 Views:
Tens and Ones- Regrouping
From eduplace.com, produced by Houghton Mifflin
Using a tens and ones workmat, students  learn how to take a large group of ones and put them into groups of ten- regrouping.  Take the group of 10 ones and put it in the tens column.  User clicks through the slides.
Found by tinag1974 in K.NBT.A.1
May 14, 2010 at 01:40 PM
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Not Right For WatchKnowLearn
Ages: 7 - 12
4366 Views:
Addition 3 (Introducing Carrying) - Khan Academy
From YouTube, produced by Salman Khan
In this video, the instructor uses the Paint Program to review how to add numbers. He starts with single-digit numbers, moves into two-digit and four-digit numbers, and reviews place value. (08:57)
January 27, 2010 at 02:32 AM
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Not Right For WatchKnowLearn
Ages: 7 - 12
4819 Views:
Adding Two-Digit Numbers Using Mental Math
From YouTube
This video teaches students to add two-digit numbers using mental math and left to right addition ( two column addition).  The problems appear on a white screen and are explained step-by-step by a math tutor. By the end of the video, students learn t... [more]
July 20, 2011 at 10:39 AM
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Not Right For WatchKnowLearn
Ages: 8 - 14
7305 Views:
Virtual Manipulative- Add and Subtract Decimals With Base 10 Blocks
From usu.edu, produced by Utah State University
Add and subtract decimal values using base blocks. The problems difficulty is controlled by the user.  Set the number of whole number columns up to 100s.  Set the decimal places from 0 to 3 places.  Other bases are available.  Please take a few secon... [more]
May 9, 2010 at 10:16 AM
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Not Right For WatchKnowLearn
Ages: 6 - 12
4433 Views:
Virtual Manipulative - Addition With Base 10 Blocks
From usu.edu, produced by Utah State University
Base Blocks Addition – Use base ten blocks to model grouping in addition. This manipulative uses a Java applet.
May 9, 2010 at 10:13 AM
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Not Right For WatchKnowLearn
Ages: 7 - 10
2706 Views:
Building Skills in Addition
From discoveryeducation.com, produced by Discovery Education
In this video, students review place value up to the hundreds place. Then, they are given a series of numbers and must identify the number of digits and how many are in each column of hundreds, tens, and ones. They also practice writing numbers from ... [more]
Found by Anonymous in K.NBT.A.1
November 28, 2010 at 06:20 PM
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Not Right For WatchKnowLearn
Ages: 5 - 8
2595 Views:
Adding a 1-Digit Number to a 2-Digit Number
From eduplace.com, produced by Houghton Mifflin
Using tens and ones blocks to model the numbers, students will add a 1-digit number to a 2-digit number.  Begin by adding the ones together, then the tens.  The user clicks through the slides.
Found by tinag1974 in K.NBT.A.1
May 20, 2010 at 02:03 PM
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