Question: Nate starts his camping trip with 70 matches. He drops 10 in a creek and his dog eats twice as many. How many matches does he have left?
Answer with step-by-step thinking: First find the number of matches the dog eats: 10 matches * 2 = 20 matches. Then subtract all the lost matches from the starting number to find the final number: 70 matches - 10 matches - 20 matches = 40 matches.
So the answer is 40.


Question: A packet of candy sweets has 30 cherry-flavored sweets, 40 strawberry-flavored sweets, and 50 pineapple-flavored sweets. Aaron eats half of each of the flavored sweets and gives 5 cherry-flavored sweets to his friend. How many sweets are still in the packet of candy?
Answer with step-by-step thinking: Aaron eats 1 / 2 * 30 sweets + 1 / 2 * 40 sweets + 1 / 2 * 50 sweets = 60 candy sweets. The packet of candy sweets still has 60 sweets - 5 sweets = 55 candy sweets.
So the answer is 55.


Question: To earn money for her new computer, Tina sells handmade postcards. In a day, she can make 30 such postcards. For each postcard sold, Tina gets $5. How much money did Tina earn if she managed to sell all the postcards she made every day for 6 days?
Answer with step-by-step thinking:
Tina made postcards for 6 days, so she has made 6 days * 30 postcards / day = 180 postcards. For every postcard, Tina gets $5, so if she sold every card, she got 180 postcards * $5 / postcard = $900.
So the answer is 900.