Multistep Addition/Subtraction

Gio had 13 gummy worms. Jayden gave her 7 more. Gio decided to bury 5 of his worms in the dirt to keep the real worms company. How many does he have now?

Gus went to help Mr. Burdick blow up soccer balls. He brought 10 with him, and Mr. Burdick already had 10 in the gym. After they blew them up, a squirrel popped 4 of them. How many good basketballs do they have now?

Fischer ran 3 miles today, and 4 miles yesterday. He wants to run 10 miles this week. How many more miles does he need to run before the week is over?

Devin went fishing, and caught 8 cod fish. His grandpa caught 4 cod fish. They threw 2 back in the lake, and kept the rest. How many did Devin and his Grandpa keep?