The cafe has 16 chefs and 16 waiters. If 6 chefs and 3 waiters drop out, how many chefs and waiters are left?
Let's think: There are 16 chefs - 6 chefs = 10 chefs left. There are 16 waiters - 3 waiters = 13 waiters left. In total there are 10 chefs + 13 waiters = 23 chefs and waiters left.. The answer is: 23.

Sophie buys five cupcakes at $2 each, six doughnuts at $1 each, four slices of apple pie at $2 per slice, and fifteen cookies at $0.60 each. How much does she spend in all?
Let's think: Five cupcakes cost 5 x $2 = $10. Six doughnuts cost 6 x $1 = $6. Four slices of apple pie cost 4 x $2 = $8. And, fifteen cookies cost 15 x $0.60 = $9. Therefore, Sophie spends $10 + $6 + $8 + $ 9 = $33.. The answer is: 33.

Emir wants to buy a dictionary that costs $5, a dinosaur book that costs $11, and a children's cookbook that costs $5. He has saved $19 from his allowance. How much more money does Emir need to buy all three books?
Let's think: The total cost of the dictionary, the dinosaur book, and the cookbook is $5 + $11 + $5 = $21. Emir needs $21 − $19 = $2.. The answer is: 2.

Steve has a bank account that earns 10% interest every year. He puts $100 in it, and then 10 each year. How much money is in it after two years?
Let's think:
After one year it earns $10 in interest because 100 x .1 = 10. It has $120 in it after a year because 100 + 10 + 10 = 120. In the second year it earns $12 in interest because 120 x .1 = 12. In the second year it has $142 in it because 120 + 12 + 10 = 142.. The answer is: 142.