1Common Core · 1.OA.D.8
1.OA.D.8 Worksheets – Find the unknown number in an addition or…
Free printable and interactive worksheets for Common Core standard 1.OA.D.8. Find the unknown number in an addition or subtraction equation. 7 worksheets so far. Every worksheet has an answer key and can be completed online with instant feedback.
WorksheetGrade 1
Karate Class: Find the Missing Number
Operations & Algebraic Thinking · 1.OA.D.8
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WorksheetGrade 1
School Bus Stops: Who Got On?
Operations & Algebraic Thinking · 1.OA.D.8
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WorksheetGrade 1
Magic Cup Tricks: Find the Hidden Number
Operations & Algebraic Thinking · 1.OA.D.8
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WorksheetGrade 1
Toy Factory Number Machines
Operations & Algebraic Thinking · 1.OA.D.8
Free13 questions
WorksheetGrade 1
Pet Shop Balance Puzzles
Operations & Algebraic Thinking · 1.OA.D.8
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WorksheetGrade 1
Picnic Mystery Numbers
Operations & Algebraic Thinking · 1.OA.D.8
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WorksheetGrade 1
Missing Numbers at the Aquarium
Operations & Algebraic Thinking · 1.OA.D.8
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