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Addition/Subtraction
Level 0:
Story Setups
Addition/Subtraction
Level 1:
Friendly Numbers
Addition/Subtraction
Level 2:
Structured Expressions
Addition/Subtraction
Level 3:
Grade-Level Values
Multiplication/Division
Level 0:
Story Setups
Multiplication/Division
Level 1:
Friendly Numbers
Multiplication/Division
Level 2:
Structured Expressions
Multiplication/Division
Level 3:
Grade-Level Values
Go to "Teacher Resources" for paper copies of problem sets and full solutions.
Critter Stories Level 0: Story Setups
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Critter Stories Level 1: Friendly Numbers
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Critter Stories Level 2: Structured Expressions
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Values Table
Sets 1–4 Values:
0–120
Sets 5–8 Values:
0–1,000
Sets 9–12 Values:
0–1,000 & fractions
Sets 13–16 Values:
0–1,000, fractions, & decimals
Critter Stories Level 3: Grade Level Values
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