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三年级脱式计算题一
25+72+25 52+18+12 17+34+19
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37-16+28 65+11-12 56-37+21
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38-25-11 48-22-21 87-35-49
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29+6×7 44+8×3 31+4×6
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3×5+47 6×8+90 9+5×7
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51+56÷7 49÷7-5 48÷6+9
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61+12-23 72÷9-8 5×6+20
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