Work out $10\frac{9}{10}+2$10910+2, leaving your answer as a mixed number.

Work out $9\frac{4}{19}+1\frac{3}{19}$9419+1319, leaving your answer as a mixed number.

Work out $1\frac{2}{11}+5\frac{9}{11}$1211+5911, giving your answer as a whole number.

Evaluate $3-1\frac{4}{5}$3−145, giving your answer as a mixed number.