Put Together, Total Unknown
1.OA.1 — Add and subtract within 20 to solve word problems involving add-to, take-from, put-together, take-apart, and compare situations, with unknowns in all positions
Build this worksheet below — all three levels and the answer key, ready to print.
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What is on the three Put Together, Total Unknown worksheets
- Support
- draws a part-part-whole bar beside every problem.
- On level
- The grade's own level, with no drawings.
- Challenge
- moves the missing number out of the answer slot.
Example problems from the on-level sheet
- Luca counted 4 coins and Rosa counted 9. How many coins in all?
- There are 9 grapes on the floor and 10 in a bag. How many grapes in all?
- Amara has 9 marbles on the table and 8 on the mat. How many marbles in all?
Every sheet is generated, so the numbers are different each time you make one.
Before this: K.OA.2 — solve addition and subtraction word problems, and add and subtract within 10.