2. Find the missing numbers.
13 + ...... = 16
...... + 4 = 18
11 + ...... = 15
12 + ...... = 17
...... + 2 = 12
13 + ...... = 15
...... + 4 = 20
...... + 4 = 16 |
4 + ...... = 10
7 + ...... = 20
...... + 6 = 19
...... + 4 = 17
...... + 3 = 19
17 + ...... = 19
16 + ...... = 18
14 + ...... = 15 |
3. Colour the clouds when the answer is even
number. 
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