Adding 9 Strategy

10 Jun, 2021

One that is really similar to compensating is one that I call give and take. Are they still counting on their fingers.

Adding 9 Addition Fact Strategies Addition Facts Math Strategies

A lot a lot a lot.

Adding 9 strategy. 1OA6Add and subtract within 20 demonstrating fluency for addition and subtraction within 10. When we add 7 8 or 9 to a number there are a couple of different approaches that we can use. Making a 10 to Add 8.

Fingers are a great tool but students need to develop other strategies to add besides their hands. Plus 7 8 and 9. It can still be reinforced in older grades as well.

This is a strategy that you will focus on in younger grades particularly first and second grade. This is a set of resources to help you introduce and teach The 9 Rule adding 9 addition fact strategy. ADDING 10 AND THEN TAKING AWAY.

When our students are faced with an equation like 49___ we encourage them to first think 41014 and then we can take one away to make 13 We focus on. Okay were gonna start with the strategy I like to call compensating. Ive discussed both of these approaches in detail in THIS BLOG POST.

First I teach the addition fact fluency strategy doubles doubles plus one and doubles minus one strategy. I recommend starting with JUST 9 where they take 1 from the number theyre adding to 9 to make a 10 and practice that A LOT. 10 9 19.

Think Addition 84 Related Equations 89. These three strategies cover a huge majority of the basic facts within 20. A sheet to scaffold pupils learning to add 9 and 11 by adding 10 and then adding taking away 1.

Doubles Doubles Plus One. Alternatively we can make a 10 and then add the rest. 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 Subtraction Strategies.

A PowerPoint demonstration of adding 9 to 2 digit numbers by adding 10 and then subtracting 1. Youll also find some free printables to help you. Tes classic free licence.

Ive added in slides to cover subtracting 9 too. Do you find that your students are having difficulty using advanced strategies such as using 10 to add 9 and 8 facts. A lot a lot a lot.

Making ten eg 8 6 8 2 4 10 4 14. Here is a memorization strategy for adding 9 plus any one digit number. As a prerequisite your students need to be fluent with adding.

First of all we can add 10 and then take some away. And for all of these were gonna. Thanks this will be very helpful.

Now add the Tens. To show them what you mean use twenty frames and red and yellow counters to demonstrate what exactly youre doing. Use strategies such as counting on.

4 5 9. It is a perfect pack of materials to help your first and second grade math students understand the concept underlying this strategy. Students need to be using 10.

Boy my students are. These facts are building blocks for addition of greater numbers using the standard algorithm. Adding to 9 part 4.

I try to incorporate lots of hands on. Its just not efficient when you get into adding and subtracting larger numbers. Think 4 plus 5 is 9 plus 10 is 19.

5 Types of Addition Strategies Compensating. So its the kids who want to. Add 9 to a Number Worksheet focuses on practicing adding 9 plus 9 to numbers within 20.

Learn addition facts with the make-a-ten strategy.

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