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# 1st Grade Common Core Math Fluently Add & Subtract Within 20 1.OA.6

Common Core Standards
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Presentation (Powerpoint) File

336 KB|129 pages
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First Grade Common Core Math 1 OA.6 Fluently Add & Subtract Within 20 1.OA.6 Practice provides two ways for students to practice and show mastery of their ability to relate counting to addition and subtraction.

It includes 40 distinct problems in two sets (129 slides in all!), with and without following answer slides. The PowerPoint file can be used on computers, or Promethean Activboard and Smart boards.

Take a look at the preview file and buy today for your students benefit!

Standard 1.OA.6 Add and subtract within 20.

6. Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14); decomposing a number leading to a ten (e.g., 13 – 4 = 13 – 3 – 1 = 10 – 1 = 9); using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 – 8 = 4); and creating equivalent but easier or known sums (e.g., adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13).
Total Pages
129 pages
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Teaching Duration
45 minutes
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