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18)  \n+ 9  \n1 6 + 1  \n1 5 + 5  \n1 1 + 7  \n7  \n+ 4  \n1 7  \n+ 2  \n3) 6 + 2  \n7) 1 5 + 3  \n11) 1 1 + 2  \n15) 1 0 + 1 0  \n19) 1 5 + 1  \n4) 1 4 + 6  \n8) 1 2 + 1  \n12) 1 2 + 4  \n16) 1 4 + 3  \n20) 6 + 4  \nAnswers  \n1.  \n2.  \n3.  \n4.  \n5.  \n6.  \n7.  \n8.  \n9.  \n10.  \n11.  \n12.  \n13.  \n14.  \n15.  \n16.  \n17.  \n18.  \n19.  \n20.  \nMath  \n[www.CommonCoreSheets.com](www.CommonCoreSheets.com)  \n3  \n1-10 11-20  \n95  \n45  \n90  \n40  \n85  \n35  \n80  \n30  \n75  \n25  \n70  \n20  \n65  \n15  \n60  \n10  \n55  \n5  \n50  \n0  \nAdding Within 20  \nName: Answer Key  \nSolve each problem.  \n1) 9 2)+ 2  \n1 1  \n5) 4 6)+ 1  \n5  \n9) 8 10)+ 2  \n1 0  \n13) 7 14)  \n+ 5  \n1 2  \n17) 1 1 18)  \n+ 9  \n2 0  \n1 6 + 1  \n1 7  \n1 5 + 5  \n2 0  \n1 1 + 7  \n1 8  \n7  \n+ 4  \n1 1  \n1 7 + 2  \n1 9  \n3) 6  \n+ 2  \n8  \n7) 1 5 + 3  \n1 8  \n11) 1 1  \n+ 2  \n1 3  \n15) 1 0  \n+ 1 0  \n2 0  \n19) 1 5  \n+ 1  \n1 6  \n4) 1 4 + 6  \n2 0  \n8) 1 2  \n+ 1  \n1 3  \n12) 1 2  \n+ 4  \n1 6  \n16) 1 4  \n+ 3  \n1 7  \n20)  \n6  \n+ 4  \n1 0  \nAnswers  \n1. 11 2. 17 3. 8 4. 20 5. 5 6. 20 7. 18 8. 13 9. 10 10. 18 11. 13 12. 16 13. 12 14. 11 15. 20 16. 17 17. 20 18. 19 19. 16  \n20. 10  \nMath  \n[www.CommonCoreSheets.com](www.CommonCoreSheets.com)  \n3  \n1-10 11-20  \n95  \n45  \n90  \n40  \n85  \n35  \n80  \n30  \n75  \n25  \n70  \n20  \n65  \n15  \n60  \n10  \n55  \n5  \n50  \n0  \nAdding Within 20  \nName:  \nSolve each problem. Answers  \n18 13 11 20  \n20 16 12 17 1.  \n11 18 10 13  \n20 5 8 17 2.  \n3.  \n1) 9 2) 1 6 3) 6 4) 1 4  \n+ 2 + 1 + 2 + 6 4.  \n5.  \n6.  \n7.  \n5) 4 6) 1 5 7) 1 5 8) 1 2  \n8.  \n+ 1 + 5 + 3 + 1  \n9.  \n10.  \n11.  \n9) 8 10) 1 1 11) 1 1 12) 1 2 12.  \n+ 2 + 7 + 2 + 4  \n13.  \n14.  \n15.  \n13) 7 14) 7 15) 1 0 16) 1 4 16.  \n+ 5 + 4 + 1 0 + 3  \nMath www. CoMommi[eSheets.com](eSheets.com 3 111--1106)[ 3](eSheets.com 3 111--1106)[ 111--1106](eSheets.com 3 111--1106) 9431 8825 8119 75 69 6313 6 0 56 50 44 38","cbCaisHra8cvH0qN","https://ap.wps.com/l/cbCaisHra8cvH0qN","pdf",47148,"English","# Addition Practice Problems\n## Answer Key","[{\"question\":\"What is the primary focus of this worksheet?\",\"answer\":\"The worksheet focuses on practicing addition problems involving numbers up to 20.\"},{\"question\":\"How many problems are included in the exercise?\",\"answer\":\"There are 20 individual addition problems provided for students to solve.\"},{\"question\":\"Does the document include solutions for the problems?\",\"answer\":\"Yes, the document provides an answer key that contains the solutions to all 20 addition problems.\"}]","Adding Within 20 - Math Practice Worksheet | PDF"]