749500
Description
Flashcards by Bruce Akitt, updated more than 1 year ago
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Created by Bruce Akitt
over 11 years ago
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| Question | Answer |
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Image:
add_in_reverse (image/jpg)
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Image:
Subt_like_this (image/jpg)
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| 18 - 9 = ___ | Think: 18 = 9 + _9_ So: 18 - 9 = _9_ |
| 17 - 8 = ___ | Think: 17 = 8 + _9_ So: 17 - 8 = _9_ |
| 16 - 7 = ___ | Think: 16 = 7 + _9_ So: 16 - 7 = _9_ |
| 15 - 6 = ___ | 15 - 6 = _9_ |
| 14 - 5 = ___ | 14 - 5 = _9_ |
| 13 - 4 = ___ | 13 - 4 = _9_ |
| 12 - 3 = ___ | 12 - 3 = _9_ |
| 11- 2 = ___ | 11- 2 = _9_ |
| 10 - 1 = ___ | 10 - 1 = _9_ |
| 16 - 8 = ___ | 16 - 8 = _8_ |
| 15 - 7 = ___ | 15 - 7 = _8_ |
| 10 - 1 = ___ | 10 -1 = _9_ |
| 14 - 6 = ___ | 14 - 6 = _8_ |
| 13 - 5 = ___ | 13 - 5 = _8_ |
| 12 - 4 = ___ | 12 - 4 = _8_ |
| 11 - 3 = ___ | 11 - 3 = _8_ |
| 10 - 2 = ___ | 10 - 2 = _8_ |
| 9 - 1 = ___ | 9 - 1 = _8_ |
| 14 - 7 = ___ | 14 - 7 = _7_ |
| 13 - 6 = ___ | 13 - 6 = _7_ |
| 12 - 5 = ___ | 12 - 5 = _7_ |
| 11 - 4 = ___ | 11 - 4 = _7_ |
| 10 - 3 = ___ | 10 - 3 = _7_ |
| 9 - 2 = ___ | 9 - 2 = _7_ |
| 8 - 1 = ___ | 8 - 1 = _7_ |
| 12 - 6 = ___ | 12 - 6 = _6_ |
| 11 - 5 = ___ | 11 - 5 = _6_ |
| 10 - 4 = ___ | 10 - 4 = _6_ |
| 9 - 3 = ___ | 9 - 3 = _6_ |
| 8 - 2 = ___ | 8 - 2 = _6_ |
| 7 - 1 - ___ | 7 - 1 = _6_ |
| 10 - 5 = ___ | 10 - 5 = _5_ |
| 9 - 4 = ___ | 9 - 4 = _5_ |
| 8 - 3 = ___ | 8 - 3 = _5_ |
| 7 - 2 = ___ | 7 - 2 = _5_ |
| 6 - 1 = ___ | 6 - 1 = _5_ |
| 8 - 4 = ___ | 8 - 4 = _4_ |
| 7 - 3 = ___ | 7 - 3 = _4_ |
| 6 - 2 = ___ | 6 - 2 = _4_ |
| 5 - 1 = ___ | 5 - 1 = _4_ |
| 6 - 3 = ___ | 6 - 3 = _3_ |
| 5 - 2 = ___ | 5 - 2 = _3_ |
| 4 - 1 = ___ | 4 - 1 = _3_ |
| 4 - 2 = ___ | 4 - 2 = _2_ |
| 3 - 1 = ___ | 3 - 1 = _2_ |
| 17 - 9 = ___ | 17 - 9 = _8_ |
| 16 - 9 = ___ | 16 - 9 = _7_ |
| 15 - 9 = ___ | 15 - 9 - _6_ |
| 14 - 9 = ___ | 14 - 9 = _5_ |
| 13 - 9 - ___ | 13 - 9 = _4_ |
| 12 - 9 = ___ | 12 - 9 = _3_ |
| 11- 9 - ___ | 11 - 9 = _2_ |
| 10 - 9 = ___ | 10 - 9 = _1_ |
| 15 - 8 = ___ | 15 - 8 = _7_ |
| 14 - 8 = ___ | 14 - 8 = _6_ |
| 13 - 8 = ___ | 13 - 8 = _5_ |
| 12 - 8 = ___ | 12 - 8 = _4_ |
| 11 - 8 = ___ | 11 - 8 = _3_ |
| 10 - 8 = ___ | 10 - 8 = _2_ |
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