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Addition & Subtraction within 20 of 3 Numbers Cut & Paste worksheets for students with autism and special education needs.

10 No Prep Worksheets:

5 pages of addition with missing addends

5 pages of addition & subtraction with missing addends

Given an addition or subtraction problem consisting of three single digit numbers to add or subtract, STUDENT will use pre-taught strategies to determine the missing addend in order to solve the problem, with 80% accuracy, in 4 out of 5 opportunities, by MONTH, YEAR.
This item is recommended for the following grade levels:

1st Grade, 2nd Grade, 3rd Grade

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