About
Who am I?
My Beliefs
Professional Development
Essays
Sprints
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
Resource Books
Deco Trees
Pattern Sheets
Place Value Charts
Problem Solving Ladders
The Great Book of Counting
White Board Inserts and Worksheets
Workshops
Teachers & Parents
LInks
Tutoring
Job Postings
Further Reading
Why Learn Math?
The Four-Step Lesson Plan
Contact
The Davidson Group
About
Who am I?
My Beliefs
Professional Development
Essays
Sprints
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
Resource Books
Deco Trees
Pattern Sheets
Place Value Charts
Problem Solving Ladders
The Great Book of Counting
White Board Inserts and Worksheets
Workshops
Teachers & Parents
LInks
Tutoring
Job Postings
Further Reading
Why Learn Math?
The Four-Step Lesson Plan
Contact
Add multiples of 10 within 40
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Add without crossing the 10 within 40
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Add crossing the 10 within 40
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Add 2-digit #s & 1-digit #s within 40
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Add 2-digit #s within 40 w/o renaming
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Add 2-digit #s within 40 with renaming
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Add 2-digit numbers within 40
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Add within 40
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2, 3, & 4 as addends
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5 as an addend
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6 as an addend (3)
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7 as an addend (3)
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8 as an addend (3)
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9 as an addend (3)
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Add within 100 by making the next 10
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Add 2-digit #s making & crossing the 10
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Add crossing the 10 within 100
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Add 1 more or less than a multiple of 10
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Add 2-digit numbers within 100
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Subtract within 100 taking from the 10
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2, 3, & 4 as subtrahends (3)
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5 as a subtrahend (3)
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6 as a subtrahend (3)
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7 as a subtrahend (3)
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8 as a subtrahend (3)
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9 as a subtrahend (3)
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Subtract 1 more/less than a mult of 10
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Subtract neighboring ones digits
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Add within 20 without crossing 10
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Add mult of 10 to mult of 10 within 100
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Add multiples of 10 within 100
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Add within 100 without crossing the 10
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Add 2-digit #s without renaming
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Add 2-digit #s without renaming (2)
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Add within 200 without renaming
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Add multiples of 10 to 2-digit numbers
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Add multiples of 10 within 200
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Add 10 & 100 to a 3-digit number
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Add multiples of 100 within 1,000
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Add 3-digit numbers without renaming
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Subtract within 20 without crossing 10
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Subtract within 20 w/o crossing 10 (2)
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Subtract multiples of 10 within 40
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Subtract within 100 w/o crossing the 10
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Subtract multiples of 10 from mult of 10
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Subtract multiples of 10 from 2-digit #s
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Subtract 2-digit #s without renaming
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Subtract within 200 without renaming
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Subtract 10 & 100 from 3-digit numbers
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Subtract multiples of 10 within 1,000
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Subtract multiples of 100 within 1,000
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Subtract 3-digit #s without renaming
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Add & sub within 20 w/o crossing 10
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True & false # sentences within 20
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Add & subtract multiples of 10 within 40
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Add & sub w/in 100 w/o crossing the 10
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Add & subtract mult of 10 within 100
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Add & subtract mult of 10 within 100 (2)
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Add & sub 2-digit #s without renaming
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Add & sub within 200 without renaming
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Add & subtract mult of 100 within 1,000
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Add & sub 3-digit #s without renaming
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Link missing addends to subtract
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Link missing addends to subtract (2)
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Link missing addends to subtract (3)
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Link missing addends to subtract (4)
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Link missing addends to subtract (5)
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Link missing addends to subtract (6)
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Link addition & subtraction (3)
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Even & odd numbers
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Even & odd numbers (2)
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Add by making the next 10
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Add multiples of 10 & 100 within 1,000
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Add mult of 10 by making the next 100
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Add 3-digit numbers to 99, 98, & 95
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Add 3-digit numbers in the 90s
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Sub 1-digit #s from 3-digit mult of 10
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Subtract within 200
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Subtract within 200 (2)
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Subtract within 200 (3)
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Subtract multiples of 10 within 1,000 (2)
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Subtract mult of 10 & 100 within 1,000
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Subtract 99, 98, & 95
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Subtract 3-dig #s ending in 99, 98, & 95
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Subtract 1 or 2 less than a multip of 10
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Fact families within 20
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Add & subtract crossing 10 within 20
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Subtract crossing the 10 within 100
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Add by making 10 with 2 & 5 as addends
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Add by making 10 with 3 & 4 as addends
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Add by making 10 with 6 as an addend
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Add by making 10 with 7 as an addend
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Add by making 10 with 8 as an addend
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Add by making 10 with 9 as an addend
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Add 3 single-digit #s by making 10
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Add 3 single-digit #s by making 10 (2)
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Add 3 single-digit #s by making 10 (3)
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2 & 5 as addends (2)
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2 & 5 as addends
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3 & 4 as addends (2)
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3 & 4 as addends
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6 as an addend (2)
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6 as an addend
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7 as an addend (2)
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7 as an addend
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8 as an addend (2)
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8 as an addend
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9 as an addend (2)
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9 as an addend
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Add crossing 10 within 20
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Equivalent number sentences
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2, 3, & 4 as subtrahends
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2, 3, & 4 as subtrahends (2)
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5 as a subtrahend
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5 as a subtrahend (2)
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6 as a subtrahend
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6 as a subtrahend (2)
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7 as a subtrahend
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7 as a subtrahend (2)
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8 as a subtrahend
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8 as a subtrahend (2)
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9 as a subtrahend
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9 as a subtrahend (2)
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Subtract crossing 10 within 20
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Equivalent number sentences (2)
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Commutative Property of Addition (2)
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Add & subtract crossing the 10 w/in 100
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Even & odd sums
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