a) | 8 + 6 5 + 7 |
9 + 4 4 + 8 |
7 + 8 8 + 7 |
b) | 11 – 8 14 – 6 |
13 – 7 12 – 5 |
17 – 9 16 – 8 |
a) | 8 + 6 = 14 5 + 7 = 12 |
9 + 4 = 13 4 + 8 = 12 |
7 + 8 = 15 8 + 7 = 15 |
b) | 11 – 8 = 3 14 – 6 = 8 |
13 – 7 = 6 12 – 5 = 7 |
17 – 9 = 8 16 – 8 = 8 |
8 + 5 = 13 | 6 + 9 = 15 | 17 – 8 = 9 |
7 + 8 = 15 | 14 – 5 = 9 | 6 + 7 = 13 |
7 + 9 = 16 | 16 – 8 = 8 | 8 + 5 = 13 |
7 + 6 13 – 7 13 – 6 |
8 + 4 12 – 8 12 – 4 |
6 + 8 14 – 6 14 – 8 |
9 + 7 16 – 9 16 – 7 |
7 + 6 = 13 13 – 7 = 6 13 – 6 = 7 |
8 + 4 = 12 12 – 8 = 4 12 – 4 = 8 |
6 + 8 = 14 14 – 6 = 8 14 – 8 = 6 |
9 + 7 = 16 16 – 9 = 7 16 – 7 = 9 |
a) 9 + 7 – 8 | b) 6 + 5 + 4 |
a) 9 + 6 = 14 ⍰ | b) 8 + 4 = 4 + 8 ⍰ |
c) 15 – 8 > 6 ⍰ | d) 13 – 4 < 17 – 9 ⍰ |
9 + 6 = 15 | 8 + 4 = 12 | 4 + 8 = 12 |
15 – 8 = 7 | 13 – 4 = 9 | 17 – 9 = 8 |
a) 9 + 6 = 14 [S] | b) 8 + 4 = 4 + 8 [Đ] |
c) 15 – 8 > 6 [Đ] | d) 13 – 4 < 17 – 9 [S] |
14 – 6 = 8 | 5 + 6 = 11 | 17 – 8 = 9 | 7 + 7 = 14 | 16 – 9 = 7 |
A. 15 – 9 | B. 13 – 8 | C. 12 – 5 |
A. 7 + 8 | B. 9 + 5 | C. 8 + 9 |
15 – 9 = 6 | 13 – 8 = 5 | 12 – 5 = 7 |
7 + 8 = 15 | 9 + 5 = 14 | 8 + 9 = 17 |
a) 15 – 3 – 6 | b) 16 – 8 + 5 |
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