Free math worksheets learn to add one-digit numbers

Lesson 1 Addition up to 10 worksheets

Lesson 2 Addition up to 10 worksheets

Lesson 3: Addition up to 10 with worksheets

Lesson 4: Addition up to 20 with worksheets

Lesson 5: Find the Tens to Avoid Counting One by One with worksheets

Lesson 6: Count by Doubles with worksheets

Lesson 7 Quickly Counting up by 1, 2, or 3 (Worksheet)

Lesson 8-9 Find the Doubles (Worksheet)

Lesson 10 Find the Tens or the Doubles (Worksheet)

Lesson 11 Quickly Adding with 1, 2, or 3 (Worksheet)

Lesson 12 Break numbers apart or decomposition (Worksheet)

Lesson 13 Make a Ten Using Decomposition (Worksheet)

Lesson 14-15 Adding with 9, 8, or 7 – Make a Ten (Worksheet)

Lesson 16 The Final facts: 5 + 4 and 5 + 6 (Worksheet)

Lesson 17-18 Final Addition Review (Worksheet)