Addition Strategies Using Doubles
To use the doubles strategy an example might be that students know 3 3 6 so they also know 30 30 60 or 300 300 600. Near Doubles This strategy is a natural progression from the doubles.
Addition Strategy Adding Doubles Anchor Chart There Is Also A Math Powerpoint Lesson That Teaches This Kids Math Worksheets Powerpoint Lesson Math Powerpoint
Doubles 1 or Near Doubles is a math strategy that builds upon the students proficiency at doubling and near numbers 1.
Addition strategies using doubles. Some strategies that I like to use when teaching addition are. These are all covered in the First Grade Addition Interactive Notebook 1. In this video we explore double facts and doing addition of doubles.
14 Downloads Grade 1 Addition Strategies. Using visual representations can help children memorize the facts. Turkey Doubles 1 is a fun way to give children practice with the addition double plus one strategy also known as near doubles.
An equation is a doubles 2 when the addends are either both odd or both even and are in order or reverse order eg. Its purpose is to train students to see ques. This means students will learn to treat whole numbers as units of ones that can be split and recombined to make calculations easier.
Another addition strategy is doubles 2. Near doubles involve facts like 45. Addition Assessment 9 Tools 13 Foundational Numeration Skills 18 Addition Strategies.
6_8 or 8_6 Adding 10. Additive strategies are about a type of thinking not the operation of addition. For example since students know 4 6 10 then they also know 40 60 100.
With textbooks having students use different strategies to solve addition problems I wanted to do a short series of videos to share with you what those strategies are and how they help kids not only do normal addition problems but also time measurement and money addition problems. 5 rows Lets find the numbers whose doubles can be used to add 4 and 5. More Mixed Operations Games.
Or they might notice that in 27 43 the ones place 7 3 is a fact that makes 10. Part Part Whole 10. 6 8 8 6.
For example to solve 56 a student could think I know that 55 makes 10 and one more makes 11. The more addition facts first graders can memorize the faster they can solve more complicated equations. Grab the Fact 89900 Plays Grade 2 1011 Grab the Fact.
It includes using a known fact and building on it. So additive strategies can be applied to addition for example 47 38 is 50 40 5 subtraction for example 74 8 as 74 4 4 multiplication for example 4 x 4 as 4 4 4. Make a Ten 9.
It includes using a known fact and building on it. Counting On 20 Zero 34 Doubles 37 Strategy Focus Review 41 Doubles 1 45 Combinations of Ten 52 Make Ten 58 Doubles 2 62 Strategy Focus Review 64 9 add 10 and take 1 away 68 4 2 and 2 74 Strategy Focus Review 78 Subtraction Readiness Assessment 82. To solve this fact our students can think I know that 448 and 1 more is 9 The goal with the near doubles facts is to build relationships and form connections between facts.
Alternatively when counting by ones there is a number missing. Add 4 and 5 using doubles. Building a strong foundation of doubles will help students with other mental math strategies particularly the near doubles.
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