balance-scale/2-item/easy · セット 4
20 problems
名前：
クラス:
日付：
1
[6 + ?] 12
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2
[1 + 1 + ?] 5
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3
[?] 7
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4
[?] 13
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5
[?] 10
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6
[1 + 2 + ?] 7
=
7
[1 + ?] 9
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8
[2 + 2 + ?] 11
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9
[3 + 3 + ?] 13
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10
[3 + ?] 7
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11
[1 + 1 + ?] 5
=
12
[?] 13
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13
[?] 5
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14
[3 + 1 + ?] 11
=
15
[?] 7
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16
[1 + 1 + ?] 4
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17
[3 + 2 + ?] 13
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18
[2 + ?] 11
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19
[1 + 3 + ?] 13
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20
[?] 6
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