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Answers |\n| --- | --- | --- | --- | --- | --- |\n| 1) | + 1 = 20 | 2) | + 1 = 14 |  |  |\n|  | 20-1 =   |  | 14-1 =   | 1. |  |\n|  |  |  |  |  |  |\n| 3) | + 7 = 9 | 4) | + 2 = 14 | 2. |  |\n|  |  |  |  |  |  |\n|  | 9-7 =   |  | 14-2 =   | 3. |  |\n|  |  |  |  |  |  |\n| 5) |   + 1 = 17 | 6) |   + 11 = 15 | 4. |  |\n|  |  |  |  |  |  |\n|  | 17-1 =   |  | 15-11 =   | 5. |  |\n|  |  |  |  |  |  |\n| 7) | + 1 = 12 | 8) | + 1 = 18 | 6. |  |\n|  |  |  |  |  |  |\n|  | 12-1 =   |  | 18-1 =   | 7. |  |\n|  |  |  |  |  |  |\n| 9) | + 3 = 19 | 10) | + 15 = 19 | 8. |  |\n|  |  |  |  |  |  |\n|  | 19-3 =   |  | 19-15 =   | 9. |  |\n|  |  |  |  |  |  |\n| 11) |   + 7 = 17 | 12) |   + 6 = 9 | 10. |  |\n|  |  |  |  |  |  |\n|  | 17-7 =   |  | 9-6 =   | 11. |  |\n|  |  |  |  |  |  |\n| 13) | + 1 = 13 | 14) | + 5 = 20 | 12. |  |\n|  |  |  |  |  |  |\n|  | 13-1 =   |  | 20-5 =   | 13. |  |\n|  |  |  |  |  |  |\n| 15) | + 3 = 18 | 16) | + 7 = 20 | 14. |  |\n|  |  |  |  |  |  |\n| 17) | 18-3 =  \u003Cbr>+ 1 = 19 | 18) | 20-7 =  \u003Cbr>+ 2 = 18 | 15.\u003Cbr>16. |  |\n|  |  |  |  |  |  |\n|  |  |  |  |  |  |\n| 19) | 19-1 =  \u003Cbr>+ 1 = 11 | 20) | 18-2 =  \u003Cbr>+ 9 = 13 | 17.\u003Cbr>18. |  |\n|  |  |  |  |  |  |\n|  |  |  |  |  |  |\n|  | 11-1 =   |  | 13-9 =   | 19.\u003Cbr>20. |  |\n|  |  |  |  |  |  |\n\nMath  \n[www.CommonCoreSheets.com](www.CommonCoreSheets.com)  \n2  \n1-10 11-20  \n95  \n45  \n90  \n40  \n85  \n35  \n80  \n30  \n75  \n25  \n70  \n20  \n65  \n15  \n60  \n10  \n55  \n5  \n50  \n0  \nSubtraction Relative to Addition  \nName: Answer Key  \n\n| Determine which number correctly answers both equations.\u003Cbr>1)  19  + 1 = 20 2)  13  + 1 = 14\u003Cbr>20-1 =  19  14-1 =  13 \u003Cbr>3)  2  + 7 = 9 4)  12  + 2 = 14\u003Cbr>9-7 =  2  14-2 =  12 \u003Cbr>5)  16  + 1 = 17 6)  4  + 11 = 15\u003Cbr>17-1 =  16  15-11 =  4 \u003Cbr>7)  11  + 1 = 12 8)  17  + 1 = 18\u003Cbr>12-1 =  11  18-1 =  17 \u003Cbr>9)  16  + 3 = 19 10)  4  + 15 = 19\u003Cbr>19-3 =  16  19-15 =  4 \u003Cbr>11)  10  + 7 = 17 12)  3  + 6 = 9\u003Cbr>17-7 =  10  9-6 =  3 \u003Cbr>13)  12  + 1 = 13 14)  15  + 5 = 20\u003Cbr>13-1 =  12  20-5 =  15 \u003Cbr>15)  15  + 3 = 18 16)  13  + 7 = 20\u003Cbr>18-3 =  15  20-7 =  13 \u003Cbr>17)  18  + 1 = 19 18)  16  + 2 = 18\u003Cbr>19-1 =  18  18-2 =  16 \u003Cbr>19)  10  + 1 = 11 20)  4  + 9 = 13\u003Cbr>11-1 =  10  13-9 =  4  | Answers\u003Cbr>1.  19  2.  13  3.  2  4.  12  5.  16  6.  4  7.  11  8.  17  9.  16  10.  4  11.  10  12.  3  13.  12  14.  15  15.  15  16.  13  17.  18  18.  16  19.  10 \u003Cbr>20. 4 |\n| --- | --- |\n\nMath  \n[www.CommonCoreSheets.com](www.CommonCoreSheets.com)  \n2  \n1-10 11-20  \n95  \n45  \n90  \n40  \n85  \n35  \n80  \n30  \n75  \n25  \n70  \n20  \n65  \n15  \n60  \n10  \n55  \n5  \n50  \n0  \nSubtraction Relative to Addition  \nName:  \n\n| Determine which number correctly answers both equations. |  | Answers\u003Cbr>1.  \u003Cbr>2.  \u003Cbr>3.  \u003Cbr>4.  \u003Cbr>5.  \u003Cbr>6.  \u003Cbr>7.  \u003Cbr>8.  \u003Cbr>9.  \u003Cbr>10.  \u003Cbr>11.  \u003Cbr>12.   |\n| --- | --- | --- |\n| \u003Cbr>31913\u003Cbr>101116\u003Cbr>1242\u003Cbr>41617 |  |  |\n| 1)   + 1 = 20\u003Cbr>20-1 =  \u003Cbr>3)   + 7 = 9\u003Cbr>9-7 =  \u003Cbr>5)   + 1 = 17\u003Cbr>17-1 =  \u003Cbr>7)   + 1 = 12\u003Cbr>12-1 =  \u003Cbr>9)   + 3 = 19\u003Cbr>19-3 =  \u003Cbr>11)   + 7 = 17\u003Cbr>17-7 =   | 2)   + 1 = 14\u003Cbr>14-1 =  \u003Cbr>4)   + 2 = 14\u003Cbr>14-2 =  \u003Cbr>6)   + 11 = 15\u003Cbr>15-11 =  \u003Cbr>8)   + 1 = 18\u003Cbr>18-1 =  \u003Cbr>10)   + 15 = 19\u003Cbr>19-15 =  \u003Cbr>12)   + 6 = 9\u003Cbr>9-6 =   |  |\n\nMath  \nModified  \n[www.CommonCoreSheets.com](www.CommonCoreSheets.com)  \n2  \n1-10 11-12  \n\n| 92 | 83 | 75 | 67 | 58 | 50 | 42 | 33 | 25 | 17 |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n| 8 | 0 |  |  |  |  |  |  |  |  |","cbCait3IrAjWIKIU","https://ap.wps.com/l/cbCait3IrAjWIKIU","pdf",48022,"English","# Determine which number correctly answers both equations\n## Problem sets (1-10)\n## Problem sets (11-20)","[{\"question\":\"What does each question ask students to do?\",\"answer\":\"Choose the number that correctly answers both equations for the same item. One equation uses addition and the other uses the matching subtraction.\"},{\"question\":\"How can teachers or students check the results?\",\"answer\":\"Use the provided answer key, which lists the correct chosen number for each problem.\"},{\"question\":\"How many problems are included in the main answer key?\",\"answer\":\"The main answer key covers problems 1 through 20.\"}]","Subtraction Relative to Addition - Answer Key - Math 1-10 11-20 | PDF",1790798253]