# Free math worksheets learn to add one-digit numbers

## Lesson 1 Addition up to 10 worksheets

Lesson on the tens lesson one starts with the powerful ten strategies. Each row has ten circles. In the example...

## Lesson 2 Addition up to 10 worksheets

In the previous lesson students learned that there are many ways to make a ten. These facts are easy to...

## Lesson 3: Addition up to 10 with worksheets

Visualizing quantities using 10 frames A ten frame helps you see the answers to addition problems more easily, if you...

## Lesson 4: Addition up to 20 with worksheets

Lesson four ten and another Now that students are comfortable with ten frames, we introduce the concept of ten and...

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

We are going to learn that there is more than one way to solve the problem. I'm going to show...

## Lesson 6: Count by Doubles with worksheets

Lesson 6: The Doubles Now that you have memorized the tens, next up are the Doubles. The Doubles are easy...

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

Part 1: The boxes below are numbered correctly in order from 1-20, but most of the numbers are hidden. Look...

## Lesson 8-9 Find the Doubles (Worksheet)

Part 1: Add the Doubles. Some of these facts will reappear in Part 3. Part 2: Solve the problems that...

## Lesson 10 Find the Tens or the Doubles (Worksheet)

Part 1: Add. Find and cross off the Tens first, then use the Ten and Another strategy. Part 2: Add....

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

Review: In lesson 7, you practiced quickly counting up by 1, 2, or 3. These are the 15 single-digit facts...

## Lesson 12 Break numbers apart or decomposition (Worksheet)

Decomposition is just a fancy word for breaking numbers apart and it is easy to do. Let’s take a look....

## Lesson 13 Make a Ten Using Decomposition (Worksheet)

Part 1: Review the Ten and another strategy from lesson 4 and 5. Since one of the addends in problem...

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

Lesson 14 Adding with 9 (Easiest) When adding with 9, you only need one more to make a ten. Cross...