I have Two Plus Two Is Not Five and I like it! I used it this school year and plan to continue using it during summer school. When planning summer school, I wanted something similar for multiplication and decided to look online to see if you had written a multiplication book. I was delighted that you did!

I have Two Plus Two Is Not Five and I like it! I used it this school year and plan to continue using it during summer school. When planning summer school, I wanted something similar for multiplication and decided to look online to see if you had written a multiplication book. I was delighted that you did!

Thank you for writing these books. I am a homeschool mom, and they have been extremely helpful and I hope that you would develop more.

The math program is really working! Happy to say that my 1st grader is no longer crying during her timed math tests. It is the only thing that has made sense to her because it isn’t random rote meaningless drilling. She can do it! I have a tool for both of my girls, and know that when we get to multiplication and division, we won’t need to worry! We can’t thank you enough!

I am homeschooling my 10 year old dyslexic child who also has memory and processing speed issues. Your books Five Times Five Is Not Ten and Two Plus Two Is Not Five have been enormously helpful and I am so grateful for you for putting math into terms both of us can understand and enjoy. Thanks so much!

I absolutely love both your workbooks! I’ve taught 2nd and 3rd grade and have used both. I love how you taught addition and subtraction at the same time so students can see the connection. I also love the way you introduce the multiplication with “tricks.” I just need you to come out with a division book that goes along with your multiplication book! Thank you!

I just had to write to thank you so much for your wonderful books. We followed your directions with the flash cards, and have practiced every day. In only one month, she has learned all of the addition and subtraction facts. She can do them in the book and orally with the flash cards. It is truly amazing to see how she responds to the tricks. You can actually see the “light go on” in her eyes when she understands. We will keep reviewing these and start the multiplication book so she will be ready for 3rd grade. I have told many people about your books.

Thank you so very much for writing the book Two Plus Two Is Not Five! I am a retired second grade teacher, and I am using it with my second grade granddaughter and my third grade grandson. They are enjoying it so much, learning their math facts easily, and are pleased that school time tests are getting easier for them.

I wanted to drop you a line to tell you how much I appreciate your book 2+2 is not 5. I began using it late last school year, and I had much success with it with my Special Education students in grades 2 and 3. Now these kiddos are back with me again. I am using it with all of my students who have math computation as an IEP goal. They are becoming very successful with the practice sheets, and are beginning to generalize it to their other work. Because we need to collect data for these students, I found the chart in the back of the book to be most helpful. Along with your books, I have been using a very simple computer program that lets me list the practice facts by the tiers. The kids are really enjoying this process! I have some on tier 2 and some on tier 4. They are helping each other, and looking forward to moving on to the multiplication and division facts.
Thanks for all of your work on this book!

Before we found Two Plus Two is Not Five, we tried at least half a dozen learning systems and workbooks to teach math to our   4 year-old son. But we found that he was not able to learn much from them other than counting up the numbers on his fingers or pictures on the page. Then we happened upon the Two Plus Two is Not Five system. From the start, he has mastered the tricks easily. As part of the exercises, he has learned a number of new skills including counting backwards, counting by twos and adding/subtracting doubles. The system of learning the trick, practicing, and then doing the mixed exercises has quickly reinforced the learning and helped us immediately spot weaknesses in learning that we worked with him to correct. The structure of the book makes it easy to sit down with him, walk him through the tricks, and let him practice until he masters the skills. There is limited parental preparation involved, and we go through one page a night, five nights a week.

I'm such a fan of your books that I just had to reply. I have both the addition/subtraction and multiplication book (found them online) and I'm dearly hoping that you're working on a division version! I'm a parent who is supplementing my son's math education at public school with your books. He has a terrific school and teachers, but has ADD and math is his least preferred activity so it's a challenge!  I'm working with him on just the basic math facts so that his learning in other math areas in school is supported by a solid foundation. The schools really don't have the time to thoroughly address basic math facts, and I'm happy to take on the task particularly when I have terrific tools like yours to use.

Finally a book for parents and school that scientific studies have supported for years! I have purchased both of your books and math facts finally make sense! Thank you for all of your work! I hope we will see it in schools soon!

My daughter had trouble remembering her addition and subtraction facts. I was looking for an alternative way to teach these facts to restore her confidence and help her "get it." Two Plus Two Is Not Five was exactly what she needed. She was able to check off facts as she learned, and the repetitiveness was crucial to her success. She finished the book, earned the certificate in the back, and now knows her addition and subtraction facts without counting on her fingers!

I worked with three students last year and used the book, Two Plus Two Is Not Five. Each of them became faster in their facts. I gave a timed test in October to one of the students, which included 10 facts, and it took her two minutes to complete. By May, she completed 28 problems of much greater difficulty in two minutes. Her confidence and abilities greatly improved. Thank you.

Our 1st and 2nd grade teachers found Two Plus Two Is Not Five a valuable resource to teach addition & subtraction. It’s particularly helpful with our 2nd graders who struggle with the basics.

I have used the Two Plus Two is Not Five in 3rd grade last year and was pleased with the results of my students. This year I am in 6th grade. We will start using Two Plus Two  to increase their fluency with basic addition and subtraction facts. I ordered the Five Times Five is Not Ten to use with the 6th graders as well.

My eight year old daughter has a learning disability that really shows up in math. When learning a simple addition or subtraction fact, she’d perfect, and then forget. After flashcards, software, other workbooks, tutoring, manipulatives and summer school, I decided to try Two Plus Two is Not Five.  I can see now that she “gets it.” She can recall the trick when she sees the numbers. She is so excited about being successful and absolutely loves math. The book may anchor my daughter’s academic future. Thank you.

I just bought the book Five Times Five Is Not Ten from Mardel's, and love the strategies to teach multiplication.  The hands on activities, along with strategies will help my students to really "see" and know their facts, not just skip counting to get to the next multiplication facts.  I like the book so much I'm ordering the Two Plus Two Is Not Five to see how to help 1st and 2nd grade with their addition and subtraction.  It's obvious a lot of research has gone into these books.

Two Plus Two Is Not Five: This is an awesome book. I bought the book the summer after my son’s kindergarten year. I wanted him to be able to add some of the smaller numbers without having to count on his fingers or draw stick figures. I switched some of the chapters around because he was grasping some concepts faster than others. When we got to the “trick” for Number in the Middle, I made a car game out of it, and began asking numbers in the middle as we were driving. Once he mastered that, I began using the practice worksheets. A huge success! I didn’t try to have my son master each “trick” in one sitting; we have paced his learning, and this summer we will be working on some other add and subtraction facts as well as moving into the multiplication book. I told all of my friends about the book, how it has enhanced my son’s ability to add and subtract with accuracy and speed as well as build his confidence in math. Lastly, his teacher told me that he was one of her brightest math students.

We have an on-going tutoring program as a part of our school supply store. I have been using your book, Two Plus Two Is Not Five, as the basis for my math students. It is everything I need. Students get the practice they need to keep skills fresh and, as a result, they are able to transfer these skills into the classroom.  Students feel such a sense of success.  Thanks for a great book.

Have received the multiplication one and look forward to implementing the strategies from both books this year. Thanks for coming up with such appropriate and useable materials.

I teach Middle School and High School special education. I really like the books because they will help supplement my math program for those kids that struggle with just a few facts or maybe a certain area (subtraction).

I recently bought your book and have read it cover to cover several times. I plan to use it with my 3rd graders as soon as school starts again. Changing the way our school teaches basic facts has been a passion of mine.  I have read and researched all summer long and love what your book has to offer.

I am the math specialist at a small school in Minnesota. I bought the book Two Plus Two is Not Five: Easy Methods to Learn Addition and Subtraction. I really liked the way the addition and subtraction are combined. I started using it the next day with all the different groups I work with (grades 3-6) and found instant success. The frustration levels were gone; kids found it fun and easy. Kids who had been struggling are finally getting it. THANKS for the wonderful book.

I purchased Two Plus Two is Not Five during the summer because I thought it might help my child with timed math tests in the fall. I used flash cards along with the book and I was very impressed with the results. My child learned all of the math facts by the end of the summer. Her math grades have really improved this school year and she has gained more confidence. I highly recommend this book to parents and teachers.

Two Plus Two is Not Five (Longevity Publishing) By Susan Greenwald

This is a great new math workbook for the early grades. Greenwald takes years of experience as a teacher and distills it into a very thorough grounding in addition and subtraction. Unlike many math workbooks, which often seem overly simplistic and include relatively few problems to solve, Greenwald builds knowledge through a series of tricks or concepts and drills them home through multiple problems. This book has been tested by my 2nd grader, and it passed with flying colors. Two Plus Two is Not Five is a great resource to supplement your child’s math homework.

Two Plus Two Is Not Five by Susan Greenwald, has been instrumental in helping my children visualize math concepts. It turns a bunch of numbers on paper into something real and tangible for my children to work with. As I was teaching them some of the math tricks in this book, I realized Susan (the author) had found a simple way to explain exactly how I actually see math problems in my mind. I never could have explained it this well. This curriculum is easy enough for my 5-year-old - he loves it and asks for more - and yet is still interesting enough to help my 9-year-old fill in some gaps in her math knowledge without being bored. I highly recommend this curriculum.

We've repeatedly been asked if we knew of a product to help with memorization of addition and subtraction facts. We've FINALLY found a resource we feel we can wholeheartedly recommend. Susan Greenwald's workbook offers lots of practice and reinforcement and uses some great memory tricks as well. Plus, it's totally reproducible!

Testimonial for Two Plus Two is Not Five

As a teacher of students with Learning Disabilities for over 17 years, teaching students their addition and subtraction facts was always a battle against the boredom of rote learning to build accuracy and fluency. This is why I am so excited about the content and organization of Two Plus Two is Not Five by Susan R. Greenwald. Two Plus Two is Not Five is a comprehensive source for teaching addition and subtraction facts. This is not just another book of drill sheets, this is a workbook with purpose! The systematic presentation of addition and subtraction facts combined with guided instruction and practice of previously introduced facts, ensures mastery for students. A variety of format presentations for the number sentences (horizontal, vertical and missing addend) and the use of special math “tricks” and methods, help students memorize their facts and develop the fluency that will allow them to successful solve more difficult computational problems.

As an instructor to undergraduate and graduate students in the field of teacher preparation for students with learning disabilities, I recommend Two Plus Two is Not Five as the resource for teaching addition and subtraction facts to students with and without disabilities. Susan Greenwald puts an instructionally sound and effective “twist” on the mundane task of rote learning math facts that will keep students engaged while becoming proficient.

Review of Susan Greenwald's book, Two Plus Two is Not Five

As a sixth grade math teacher, I absolutely agree with her statement that "children tend to struggle with higher-level math when they have not yet memorized the math facts." Her declaration that "children should memorize the math facts" is a phrase I have repeated at parent conferences over and over, year after year. Susan Greenwald's book may be an answer for many teachers. Not because it is more drill and practice, but because it teaches kids tricks and strategies for memorizing. I applaud her for producing such a book.