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Math Worksheets

Lessons for First Grade

Free Printable Worksheets

Printable Addition Strategy Worksheets for 1st Grade:

Add by Counting On

Counting On with Missing Addend

Adding Doubles (eg. 3 + 3)

Add using Addition Facts

Make 10 strategy, addend is 9 (eg. 9 + 6)

Make 10 strategy, addend is 8 (eg. 8 + 5)

Make 10 strategy, addend is 7,8,9

How to use single-digit sums to support solutions for analogous sums?

- Start with Simple Sums:

Ensure the students have a solid grasp of single-digit addition. Practice these frequently using manipulatives (counters, blocks, etc.) or number lines. - Build on Known Facts:

Present problems like 8 + 4, 18 + 4, and 28 + 4.

Guide the students to notice the common element: 8 + 4 in each problem.

Remind them of the answer to 8 + 4 (which should be well-known) and build upon it. - Break Down Larger Sums:

Encourage the students to visualize larger sums as combinations of smaller, familiar sums.

For example, 27 + 5 can be seen as 20 + 7 + 5.

Break it down further: 7 + 5 = 12, then add the 20 to get 32. - Encourage Mental Strategies:

As the students become more comfortable, encourage them to use mental strategies like:

Counting on from the larger number (e.g., 27 + 5, count on 5 from 27).

Using “make a ten” strategies (e.g., 27 + 5, take 3 from 5 to make 27 + 3 = 30, then add the remaining 2).

Click on the following worksheet to get a printable pdf document.

Scroll down the page for more Addition Strategy Worksheets.

(These worksheets are printable files with answers on the second page.)

Addition Strategy Worksheet #1

Addition Strategy Worksheet #2

Addition Strategy Worksheet #3

Addition Strategy Worksheet #4 (sprint practice)

Addition Strategy Worksheet #5 (sprint practice)

Add using Addition Facts

Counting-On Lesson

Counting-On to find missing Addend Lesson

Addition within 10 (eg. 3 + 5)

Addition within 20 (eg. 6 + 8)

Mixed Single Digit Addition

Missing Addend (sums < 10) (eg. __ + 5 = 7)

Missing Addend Word Problems (eg. 8 + __ = 17)

Try the free Mathway calculator and
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