1st Grade Common Core Word Problem Worksheets 1.OA.4 Subtraction as an Unknown Addend
**In the yearlong progression, these worksheets were designed to be taught in the 2nd nine weeks; however, they could be used any time after you have taught the review concepts. You could also use the front of the worksheets in isolation.
The following attachment is a five day series of worksheets, which includes a test for Friday. Each day has two worksheets, designed to be copied front and back. The front sheet of each day is the focus standard of the week 1.OA.4 Understand subtraction as an unknown-addend problem. The back of the sheet is review taught previously.
The review concepts on this week of worksheets are standards 1.OA.1, 1.OA.8 & 1.NBT.1.
Each set of worksheets incorporates word problems and place value every day.