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Tiếng ViệtBox A
Box B
Box C
Box D
Box E
Пам’ять
8
7
9
3
9
9
0
0
0
0
0
0
4
4
2
5
5
4
4
4
6
5
6
10
3
8
8
7
10
10
3
6
5
14
15
6
June 2024
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July
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April
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May
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Fri, May 30
Sat, May 31
Box A
Box B
Box C
Box D
Box E
Пам’ять
0
0
0
0
0
0
10
16
10
12
11
6
0
0
0
0
0
0
14
5
9
18
10
9
10
3
7
18
8
9
5
9
9
9
10
3
Box A
Box B
Box C
Box D
Box E
Пам’ять
10
14
30
42
34
15
7
14
25
35
14
14
13
16
27
40
30
19
0
11
24
36
20
0
0
3
11
22
16
2
0
16
31
63
30
5
Box A
Box B
Box C
Box D
Box E
Пам’ять
0
0
0
0
0
0
13
11
18
26
15
17
5
6
7
2
8
9
4
4
10
12
13
1
Box A
Box B
Box C
Box D
Box E
Пам’ять
9
8
9
8
13
14
12
5
9
10
12
13
1
6
14
21
10
7
0
0
0
0
0
0
13
9
15
17
19
17
13
9
16
22
19
21
Addition
Need practiceMemory
| + | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| 0 | B | B | A | C | B | B | B | A | C | A | |||||||||||
| 1 | B | D | C | C | D | D | C | D | D | D | C | C | B | B | C | C | C | C | C | B | |
| 2 | M | E | M | D | D | E | E | E | M | M | C | C | D | D | E | D | D | C | C | ||
| 3 | A | E | A | D | E | M | D | E | E | A | M | A | A | D | A | A | A | A | |||
| 4 | B | B | A | B | M | A | B | A | A | M | A | A | A | A | A | B | A | ||||
| 5 | B | M | B | C | A | B | C | C | A | A | A | B | A | B | B | A | |||||
| 6 | D | C | C | B | B | B | C | B | B | C | A | A | C | A | B | ||||||
| 7 | D | C | B | E | D | B | B | D | E | D | B | D | C | D | |||||||
| 8 | E | E | E | D | E | D | D | E | D | D | D | C | D | ||||||||
| 9 | A | A | D | E | E | D | E | E | A | A | D | D | |||||||||
| 10 | C | D | C | C | B | B | B | D | C | D | C | ||||||||||
| 11 | D | B | B | D | D | D | B | B | C | ||||||||||||
| 12 | D | D | D | C | B | C | C | C | |||||||||||||
| 13 | C | C | B | C | C | D | C | ||||||||||||||
| 14 | C | B | C | B | C | C | |||||||||||||||
| 15 | D | B | C | C | C | ||||||||||||||||
| 16 | B | B | E | B | |||||||||||||||||
| 17 | B | D | B | ||||||||||||||||||
| 18 | D | B | |||||||||||||||||||
| 19 | D | ||||||||||||||||||||
| 20 |
Addition
Need practiceMemory
| + | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| 0 | B | B | A | C | B | B | B | A | C | A | |||||||||||
| 1 | B | D | C | C | D | D | C | D | D | D | C | C | B | B | C | C | C | C | C | B | |
| 2 | M | E | M | D | D | E | E | E | M | M | C | C | D | D | E | D | D | C | C | ||
| 3 | A | E | A | D | E | M | D | E | E | A | M | A | A | D | A | A | A | A | |||
| 4 | B | B | A | B | M | A | B | A | A | M | A | A | A | A | A | B | A | ||||
| 5 | B | M | B | C | A | B | C | C | A | A | A | B | A | B | B | A | |||||
| 6 | D | C | C | B | B | B | C | B | B | C | A | A | C | A | B | ||||||
| 7 | D | C | B | E | D | B | B | D | E | D | B | D | C | D | |||||||
| 8 | E | E | E | D | E | D | D | E | D | D | D | C | D | ||||||||
| 9 | A | A | D | E | E | D | E | E | A | A | D | D | |||||||||
| 10 | C | D | C | C | B | B | B | D | C | D | C | ||||||||||
| 11 | D | B | B | D | D | D | B | B | C | ||||||||||||
| 12 | D | D | D | C | B | C | C | C | |||||||||||||
| 13 | C | C | B | C | C | D | C | ||||||||||||||
| 14 | C | B | C | B | C | C | |||||||||||||||
| 15 | D | B | C | C | C | ||||||||||||||||
| 16 | B | B | E | B | |||||||||||||||||
| 17 | B | D | B | ||||||||||||||||||
| 18 | D | B | |||||||||||||||||||
| 19 | D | ||||||||||||||||||||
| 20 |
Subtraction
Need practiceMemory
| – | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| 0 | |||||||||||||||||||||
| 1 | D | C | |||||||||||||||||||
| 2 | D | C | D | ||||||||||||||||||
| 3 | M | A | D | A | |||||||||||||||||
| 4 | M | A | A | A | A | ||||||||||||||||
| 5 | A | A | A | A | A | A | |||||||||||||||
| 6 | A | B | A | A | C | C | A | ||||||||||||||
| 7 | B | D | D | B | B | C | C | C | |||||||||||||
| 8 | D | D | C | D | E | D | E | D | D | ||||||||||||
| 9 | A | A | E | A | D | A | E | A | A | A | |||||||||||
| 10 | E | C | D | B | D | B | B | C | D | B | D | ||||||||||
| 11 | C | C | D | C | B | E | D | D | C | B | |||||||||||
| 12 | C | D | C | D | C | C | B | D | D | D | C | ||||||||||
| 13 | C | C | D | C | D | E | B | C | D | E | D | D | |||||||||
| 14 | B | B | B | C | C | D | D | B | E | D | B | D | C | ||||||||
| 15 | C | B | C | C | D | B | D | C | B | C | D | D | C | C | |||||||
| 16 | D | D | B | C | D | C | C | B | D | C | D | D | B | D | C | ||||||
| 17 | C | D | C | B | D | C | E | B | C | D | B | B | C | C | C | D | |||||
| 18 | D | B | C | B | D | C | D | B | D | C | D | C | B | B | D | D | D | ||||
| 19 | C | E | D | C | C | D | C | B | C | C | D | B | B | C | C | D | C | D | |||
| 20 | D | D | C | E | E | C | D | D | E | D | D | C | M | D | C | D | D | D | D |
Subtraction
Need practiceMemory
| – | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| 0 | |||||||||||||||||||||
| 1 | D | C | |||||||||||||||||||
| 2 | D | C | D | ||||||||||||||||||
| 3 | M | A | D | A | |||||||||||||||||
| 4 | M | A | A | A | A | ||||||||||||||||
| 5 | A | A | A | A | A | A | |||||||||||||||
| 6 | A | B | A | A | C | C | A | ||||||||||||||
| 7 | B | D | D | B | B | C | C | C | |||||||||||||
| 8 | D | D | C | D | E | D | E | D | D | ||||||||||||
| 9 | A | A | E | A | D | A | E | A | A | A | |||||||||||
| 10 | E | C | D | B | D | B | B | C | D | B | D | ||||||||||
| 11 | C | C | D | C | B | E | D | D | C | B | |||||||||||
| 12 | C | D | C | D | C | C | B | D | D | D | C | ||||||||||
| 13 | C | C | D | C | D | E | B | C | D | E | D | D | |||||||||
| 14 | B | B | B | C | C | D | D | B | E | D | B | D | C | ||||||||
| 15 | C | B | C | C | D | B | D | C | B | C | D | D | C | C | |||||||
| 16 | D | D | B | C | D | C | C | B | D | C | D | D | B | D | C | ||||||
| 17 | C | D | C | B | D | C | E | B | C | D | B | B | C | C | C | D | |||||
| 18 | D | B | C | B | D | C | D | B | D | C | D | C | B | B | D | D | D | ||||
| 19 | C | E | D | C | C | D | C | B | C | C | D | B | B | C | C | D | C | D | |||
| 20 | D | D | C | E | E | C | D | D | E | D | D | C | M | D | C | D | D | D | D |
Need practiceMemory
| × | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| 1 | E | B | E | D | D | D | D | B | B | E | C | D |
| 2 | E | C | C | E | M | D | E | E | M | M | E | E |
| 3 | E | M | A | M | A | A | A | A | A | M | E | E |
| 4 | A | E | E | M | A | A | M | M | A | A | A | A |
| 5 | B | B | B | B | A | M | A | B | B | A | C | M |
| 6 | C | D | B | C | D | B | B | B | C | C | D | A |
| 7 | C | C | D | D | D | E | C | C | D | D | B | D |
| 8 | C | D | D | D | M | D | E | D | E | D | E | E |
| 9 | D | D | M | A | E | A | E | M | D | A | A | E |
| 10 | D | C | C | C | E | D | C | D | C | C | D | E |
| 11 | D | B | C | E | C | C | C | E | D | C | B | E |
| 12 | D | C | B | C | E | E | D | D | C | D | D | D |
Need practiceMemory
| ÷ | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 1 | B | B | E | C | D | D | D | B | C | B |
| 2 | E | D | C | D | D | E | D | C | C | C |
| 3 | A | A | E | A | E | A | D | A | A | A |
| 4 | A | A | A | A | A | A | A | A | A | A |
| 5 | C | A | A | B | A | A | B | A | A | A |
| 6 | B | A | A | B | B | A | A | A | A | A |
| 7 | C | B | C | B | C | C | C | B | C | C |
| 8 | D | C | C | D | D | C | D | D | D | E |
| 9 | A | D | E | A | A | A | D | A | A | A |
| 10 | C | B | C | C | C | C | B | C | B | C |