Addition and Subtraction Facts to 20. The basic addition and subtraction facts are all the combinations of 1-digit numbers (2+2, 6+9, 8+4, etc.) and the corresponding subtraction exercises (18-9, 7-4, etc.). (See the fact chart at the end of this page.) To you, these are probably automatic. read more
Subtracting Single-Digit Numbers Worksheets a.k.a. Subtraction Facts. Subtraction facts worksheets with various ranges and including worksheets for practicing individual facts. Subtracting single-digit facts is a skill that students generally learn after or while they are learning single-digit addition facts. read more