Work out $2\frac{1}{8}-1$218−1, leaving your answer as a mixed number.
Work out $4\frac{1}{2}+2$412+2, leaving your answer as a mixed number.
Work out $3-1\frac{2}{6}$3−126, leaving your answer as a mixed number.
Work out $1+4\frac{1}{10}$1+4110, leaving your answer as a mixed number.