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A set of vocabulary-style arithmetic flashcards covering fundamental addition and subtraction operations extracted from the lecture transcript.
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0+1
1
0+10
10
0+20
20
10+0
10
20+0
20
1+1
2
1+10
11
1+19
20
2+10
12
2+18
20
3+10
13
3+17
20
4+10
14
4+16
20
5+10
15
5+15
20
6+10
16
6+14
20
7+10
17
7+13
20
8+10
18
8+12
20
9+10
19
9+11
20
10+10
20
11+5
16
12+8
20
13+7
20
14+6
20
15+5
20
16+4
20
17+3
20
18+2
20
19+1
20
20−20
0
20−10
10
20−0
20
19−19
0
19−10
9
18−9
9
17−17
0
16−8
8
15−5
10
14−7
7
13−13
0
12−6
6
11−1
10
10−10
0
9−5
4
8−4
4
7−0
7
6−3
3
5−5
0
4−2
2
3−1
2
2−0
2