2. Count and write. 1) Six plus five is eleven. 2) Nine plus four is thirteen. 3) Four plus eight is twelve. 4) One plus eight is nine. 5) Six plus eleven is seventeen. 6) Fourteen plus six is twenty.

1. Six plus five is eleven: \(6+5=11\).
2. Nine plus four is thirteen: \(9+4=13\).
3. Four plus eight is twelve: \(4+8=12\).
4. One plus eight is nine: \(1+8=9\).
5. Six plus eleven is seventeen: \(6+11=17\).
6. Fourteen plus six is twenty: \(14+6=20\).

Ответ: 11, 13, 12, 9, 17, 20.