さんすうドリル(2けたの足し算と引き算)
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28-18= 23+17= 67-62= 73-58= 44-11= 26-24= 58+13= 42-30= 89-29= 52-18= 12+50= 58-41= 52+11= 45-12= 56-45= 64-27= 80-38= 58-47= 17+43= 95-90= |
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25+25= 68-65= 39-14= 67+24= 29+57= 53-22= 84-49= 80-64= 91-27= 44-37= 42+45= 15+18= 83-19= 98-35= 61-22= 56+30= 88-43= 93-80= 98-34= 64-30= |
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78-38= 86-60= 24-15= 84-26= 56+19= 34+57= 30+60= 90-68= 64-15= 73-29= 94-49= 10+79= 28-10= 64+31= 70+26= 77-11= 22-21= 26+26= 39-11= 29-12= |
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------------------------------【解答】------------------------------
| （左列）10, 40, 5, 15, 33, 2, 71, 12, 60, 34, 62, 17, 63, 33, 11, 37, 42, 11, 60, 5, （中央列）50, 3, 25, 91, 86, 31, 35, 16, 64, 7, 87, 33, 64, 63, 39, 86, 45, 13, 64, 34, （右列）40, 26, 9, 58, 75, 91, 90, 22, 49, 44, 45, 89, 18, 95, 96, 66, 1, 52, 28, 17, |
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