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By engaging with these specific exercises, students reinforce their ability to quickly solve basic algebraic expressions while mastering the relationship between addition and subtraction operations, ultimately enhancing their overall mathematical performance and confidence in handling numbers up to 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17 | 18 | 19 | 20 |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n\n1) 3 + 10 =   13) 7 + 9 =   2) 12 – 4 =   14) 11 – 7 =   3) 8 + 6 =   15) 6 + 11 =   4) 18 – 5 =   16) 17 – 6 =   5) 7 + 5 =   17) 5 + 13 =   6) 12 – 9 =   18) 15 – 11 =   7) 4 + 8 =   19) 9 + 9 =   8) 14 – 6 =   20) 13 – 8 =   9) 13 + 4 =   21) 12 + 7 =   10) 19 – 3 =   22) 20 – 16 =   11) 2 + 15 =   23) 3 + 15 =    \n12) 20 – 8 =   24) 16 – 13 =    \nCHALLENGE  \n\n| 15 | 6 | 13 | 5 | 9 |\n| --- | --- | --- | --- | --- |\n\nChoose any 3 of the numbers above to complete each of the equations.  \n\n|  | + |  | = |  |  |  | ̶ |  | = |  |  |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n|  |  |  |  |  |  |  |  |  |  |  |  |\n\nADD AND SUBTRACT WITHIN 20 SHEET 2 ANSWERS  \n\n| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n\n1) 3 + 10 =  13  13) 7 + 9 =  16   \n2) 12 – 4 =  8  14) 11 – 7 =  4   \n3) 8 + 6 =  14  15) 6 + 11 =  17   \n4) 18 – 5 =  13  16) 17 – 6 =  11   \n5) 7 + 5 =  12  17) 5 + 13 =  18   \n6) 12 – 9 =  3  18) 15 – 11 =  4   \n7) 4 + 8 =  12  19) 9 + 9 =  18   \n8) 14 – 6 =  8  20) 13 – 8 =  5   \n9) 13 + 4 =  17  21) 12 + 7 =  19   \n10) 19 – 3 =  16  22) 20 – 16 =  4   \n11) 2 + 15 =  17  23) 3 + 15 =  18   \n12) 20 – 8 =  12  24) 16 – 13 =  3   \nCHALLENGE  \n\n| 15 | 6 | 13 | 5 | 9 |\n| --- | --- | --- | --- | --- |\n\nChoose any 3 of the numbers above to complete each of the equations.  \n\n| There are two different solutions for each equation: | 9 + 6 = 15 | 15 – 9 = 6 |\n| --- | --- | --- |\n|  | 6 + 9 = 15 | 15 – 6 = 9 |","cbCaiqaHVLPeBCk0","https://ap.wps.com/l/cbCaiqaHVLPeBCk0","pdf",184750,"English","# Addition and Subtraction Practice\n## Challenge Problem\n# Answer Key","[{\"question\":\"What is the primary focus of this worksheet?\",\"answer\":\"The worksheet focuses on practicing addition and subtraction problems involving numbers within the range of 0 to 20.\"},{\"question\":\"Does the document provide solutions to the problems?\",\"answer\":\"Yes, the document includes a dedicated 'Answers' section that provides the correct result for each of the 24 equations and the challenge problem.\"},{\"question\":\"What is the purpose of the 'Challenge' section?\",\"answer\":\"The challenge section encourages students to choose three numbers from a provided set to complete both an addition and a subtraction equation, testing their understanding of number relationships.\"}]","Add and Subtract within 20 - Sheet 2 | PDF",1792671327]