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2, 5, 10, 17, 26, () A.29 B.33 C.37 D.41
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:2,3,5,9,17,()。 A.27 B.30C.33D.35
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2, 5, 10, 17, 26, () A.29 B.33 C.37 D.41
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2, 7, 11, 17, ()。A.6 B.22 C.21 D.23
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2,7,11,17,()。A.6 B.22 C.21 D.23
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列竖式计算下面各题。(1)295×14=(2)932×21=(3)206×13=(4)602×33=(5)560×40=(6)908×17=
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1/3,2/5,4/9,(),16/23,32/33A.6/13B.8/15C.10/17D.12/19