Addition Strategies Using Doubles
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. Addition Assessment 9 Tools 13 Foundational Numeration Skills 18 Addition Strategies.
Near doubles involve facts like 45.
Addition strategies using doubles. Turkey Doubles 1 is a fun way to give children practice with the addition double plus one strategy also known as near doubles. Additive strategies are about a type of thinking not the operation of addition. It includes using a known fact and building on it.
Make a Ten 9. Some strategies that I like to use when teaching addition are. The more addition facts first graders can memorize the faster they can solve more complicated equations.
These are all covered in the First Grade Addition Interactive Notebook 1. An equation is a doubles 2 when the addends are either both odd or both even and are in order or reverse order eg. For example since students know 4 6 10 then they also know 40 60 100.
5 rows Lets find the numbers whose doubles can be used to add 4 and 5. Grab the Fact 89900 Plays Grade 2 1011 Grab the Fact. This means students will learn to treat whole numbers as units of ones that can be split and recombined to make calculations easier.
In this video we explore double facts and doing addition of doubles. Building a strong foundation of doubles will help students with other mental math strategies particularly the near doubles. 6_8 or 8_6 Adding 10.
Alternatively when counting by ones there is a number missing. Using visual representations can help children memorize the facts. 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.
Add 4 and 5 using doubles. More Mixed Operations Games. Part Part Whole 10.
Doubles 1 or Near Doubles is a math strategy that builds upon the students proficiency at doubling and near numbers 1. 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. For example to solve 56 a student could think I know that 55 makes 10 and one more makes 11.
Or they might notice that in 27 43 the ones place 7 3 is a fact that makes 10. 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. 6 8 8 6.
Another addition strategy is doubles 2. Its purpose is to train students to see ques. It includes using a known fact and building on it.
Near Doubles This strategy is a natural progression from the doubles. 14 Downloads Grade 1 Addition Strategies. 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.
