Solve the following multiplication problems and word problems.

Here are the solutions for the problems.

5. Answer the following:

• a. Eight 3s $$8 \times 3 = \boxed{24}$$
• b. Four groups of 9 $$4 \times 9 = \boxed{36}$$
• c. Nine 10s $$9 \times 10 = \boxed{90}$$
• d. 7 groups of 8 $$7 \times 8 = \boxed{56}$$
• e. Eight 9s $$8 \times 9 = \boxed{72}$$
• f. Eight groups of 8 $$8 \times 8 = \boxed{64}$$

Spiders on a wall
There are five spiders on the wall. Each spider has 8 legs.
To find the total number of legs, multiply the number of spiders by the number of legs per spider.

$$5 \times 8 = \boxed{40}$$

They have 40 legs altogether.