Question: Jackson had 20 kilograms of meat. He used 1/4 of the meat to make meatballs and used 3 kilograms of meat to make spring rolls. How many kilograms of meat are left?
Answer: Jackson used 20 x 1 / 4 = 5 kilograms of meat to make meatballs. He had 20 - 5 = 15 kilograms of meat left. So 15 - 3 = 12 kilograms of meat are left. The answer is 12.

Question: Tom wants to visit Barbados. He needs to get 10 different vaccines to go and a doctor's visit. They each cost $45 and the doctor's visit costs $250 but insurance will cover 80% of these medical bills. The trip itself cost $1200. How much will he have to pay?
Answer: The medical cost comes out to 45 * 10 + 250 = $700. Insurance covers 700 * .8 = $560. So he has to pay 700 - 560 = $140. Added to the cost of the trip he has to pay 1200 + 140 = $1340. The answer is 1340.

Question: Richard starts walking from Cincinnati to New York City, which is 70 miles. Richards walks 20 miles the first day. The next day he walks 6 miles less than half as much as he walked the first day. He walks 10 miles the third day. How many miles further does Richard have to walk to be in New York City?
Answer: The second day Richard walks 20 / 2 - 6 = 4 miles. Richard walks 20 + 4 + 10 = 34 total miles. Richard has 70 - 34 = 36 miles further to walk to be in New York City. The answer is 36.

Question: Tina saved $27 in June, $14 in July, and $21 in August. Then Tina spent $5 on books and $17 on new shoes. How much money does Tina have left?
Answer:
The total amount of money saved is $27 + $14 + $21 = $62. The total amount spent on books and new shoes is $5 + $17 = $22. Tina has $62 − $22 = $40 left. The answer is 40.