Q: Find the total thickness of two pieces of wood that a carpenter glued together if one is \( 5 / 16 \) inches and the other is \( 7 / 8 \) inches thick?

How many times greater is \( 9 \times 10^{100} \) than \( 3 \times 10^{-10} \) ?

Add. \( \begin{array}{ll}\text { (a) } 3 \frac{1}{8}+3 \frac{5}{8} & \text { (b) } 2 \frac{5}{11} \\ \text { (d) } 5 \frac{1}{2}+8 \frac{1}{8} & \text { (e) } 1 \frac{1}{7}+2 \frac{3}{11} \\ \text { (g) } 4 \frac{3}{7}+5 \frac{1}{5} & \text { (h) } 2 \frac{4}{6}+3 \frac{7}{8}\end{array} \)

Add. \( \begin{array}{lll}\text { (a) } 3 \frac{1}{8}+3 \frac{5}{8} & \text { (b) } 2 \frac{5}{11} & \text { (c) } 3 \frac{9}{10}+2 \frac{3}{5} \\ \text { (d) } 5 \frac{1}{2}+8 \frac{1}{8} & \text { (e) } 1 \frac{1}{7}+2 \frac{3}{11} & \text { (f) } 6 \frac{2}{9} \\ \text { (g) } 4 \frac{3}{7}+5 \frac{1}{5} & \text { (h) } 2 \frac{4}{6}+3 \frac{7}{8} & \end{array} \)

How to convert 600 seconds in minutes?

Vilket tal är en tiondel större än 0,7 ? Vilket tal är en tiondel mindre än 0,4 ?