Who am I?
My Beliefs
Revisionary Edition Introduction
Book 1: Numbers to 10
Book 2: Place Value
Book 3: Addition & Subtraction
Book 4: Multiplication & Division
Book 5: Times Tables
Book 6: Measurement, Data, & Geometry
Book 7: Fractions & Decimals
Book 8: Rational Numbers, Ratios, & Percent
Book 9: Algebra, Exponents, & Geometry
Book 10: Kindergarten
Professional Development
Deco Trees
Pattern Sheets
Place Value Charts
Problem Solving Ladders
The Great Book of Counting
White Board Inserts and Worksheets
Upcoming Workshops
LInks
Tutoring
Further Reading & Podcasts
Why Learn Math?
The Four-Part Lesson Plan
Essays
Contact

The Davidson Group

Who am I?
My Beliefs
Revisionary Edition Introduction
Book 1: Numbers to 10
Book 2: Place Value
Book 3: Addition & Subtraction
Book 4: Multiplication & Division
Book 5: Times Tables
Book 6: Measurement, Data, & Geometry
Book 7: Fractions & Decimals
Book 8: Rational Numbers, Ratios, & Percent
Book 9: Algebra, Exponents, & Geometry
Book 10: Kindergarten
Professional Development
Deco Trees
Pattern Sheets
Place Value Charts
Problem Solving Ladders
The Great Book of Counting
White Board Inserts and Worksheets
Upcoming Workshops
LInks
Tutoring
Further Reading & Podcasts
Why Learn Math?
The Four-Part Lesson Plan
Essays
Contact
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  • 1.NBT.6
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  • 1.OA6
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  • 2.NBT.6
  • 2.NBT.7
  • 2.NBT.8
  • 2.OA.1
  • 2.OA.2
  • 2.OA.3
  • 6.EE.3
  • 6.NS.4
1Subtract within 20 without crossing 10.png
Subtract within 20 without crossing 10
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2Subtract within 20 without crossing the 10(2).png
Subtract within 20 w/o crossing 10 (2)
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1Add and subtract within 20 without crossing the 10.png
Add & sub within 20 w/o crossing 10
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Add and subtract crossing 10 within 20 - watermark.png
Add & subtract crossing 10 within 20
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1Add by making 10 with 2 and 5 as addends.png
Add by making 10 with 2 & 5 as addends
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2Add by making 10 with 3 and 4 as addends.png
Add by making 10 with 3 & 4 as addends
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3Add by making 10 with 6 as an addend.png
Add by making 10 with 6 as an addend
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4Add by making 10 with 7 as an addend.png
Add by making 10 with 7 as an addend
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5Add by making 10 with 8 as an addend.png
Add by making 10 with 8 as an addend
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6Add by making 10 with 9 as an addend.png
Add by making 10 with 9 as an addend
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7Add 3 single-digit numbers by making 10.png
Add 3 single-digit #s by making 10
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8Add 3 single-digit numbers by making 10(2).png
Add 3 single-digit #s by making 10 (2)
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9Add 3 single-digit numbers by making 10(3).png
Add 3 single-digit #s by making 10 (3)
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1 2 and 5 as addends.png
2 & 5 as addends (2)
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2 2 and 5 as addends(2).png
2 & 5 as addends
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3 3 and 4 as addends.png
3 & 4 as addends (2)
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4 3 and 4 as addends(2).png
3 & 4 as addends
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5 6 as an addend.png
6 as an addend (2)
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6 6 as an addend(2).png
6 as an addend
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7 7 as an addend.png
7 as an addend (2)
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9 8 as an addend.png
8 as an addend (2)
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9 8 as an addend(2).png
8 as an addend
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10 9 as an addend.png
9 as an addend (2)
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12 Add crossing the 10 within 20.png
Add crossing 10 within 20
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13 Equivalent number sentences.png
Equivalent number sentences
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2, 3, and 4 as subtrahends.png
2, 3, & 4 as subtrahends
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2, 3, and 4 as subtrahends(2).png
2, 3, & 4 as subtrahends (2)
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5 as a subtrahend.png
5 as a subtrahend
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5 as a subtrahend(2).png
5 as a subtrahend (2)
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7 as a subtrahend.png
7 as a subtrahend
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8 as a subtrahend.png
8 as a subtrahend
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8 as a subtrahend(2).png
8 as a subtrahend (2)
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9 as a subtrahend.png
9 as a subtrahend
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9 as a subtrahend(2).png
9 as a subtrahend (2)
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10Subtract crossing the 10 within 20.png
Subtract crossing 10 within 20
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11Equivalent number sentences.png
Equivalent number sentences (2)
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Commutative Property of Addtion within 20 - WM.png
Commutative Property of Addition (2)
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The Davidson Group

7085 Charmant Drive, #40

San Diego, CA  92122

717-679-6197

© Bill Davidson.  2018.  All Rights Reserved

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