1.OA.B.3 1st Grade Missing Number Worksheets PDF
1st Grade Missing Number Worksheets. Apply properties of operations as strategies to add and subtract.2 Examples: If 8 + 3 = 11 is known, then 3 + 8 = 11.
1st Grade Missing Number Worksheets. Apply properties of operations as strategies to add and subtract.2 Examples: If 8 + 3 = 11 is known, then 3 + 8 = 11.