20以内加减法.docx
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20以内加减法
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20以内进位加法
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(1)
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20以内进位加法
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(10)
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(1)
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20以内进位加法
(4)
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(10)
9+2=
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(1)
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20以内进位加法
(5)
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(7)
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(10)
7+5=
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(1)
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20以内进位加法
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(1)
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20以内进位减法
(5)
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(1)
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20以内进位减法
(5)
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(1)
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20以内进位减法
(5)
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11-7=
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(1)
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20以内进位减法
(5)
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12-9=
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(1)
(2)
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20以内进位减法
(4)
(5)
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(8)
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(10)
11-7=
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