White Subtraction Flashcards

1
Q

7

-5

A

2

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2
Q

8

-6

A

2

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1
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2
3
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3
Q

9

-7

A

2

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2
3
4
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4
Q

8

-3

A

5

How well did you know this?
1
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2
3
4
5
Perfectly
5
Q

8

-5

A

3

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2
3
4
5
Perfectly
6
Q

9

-6

A

3

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1
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2
3
4
5
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7
Q

9

-3

A

6

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8
Q

6

-4

A

2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly