| 1. Five business people met for lunch and each person gave everyone else a business card. How many business cards were given out? | 6. At the Drama club picnic everyone got a plain, white T-shirt and a marker. There were 15 people at the picnic and everyone wrote a message on everyone else's shirt. How many messages were written? |
| 2. There were 12 people at Karen's New Year's Eve party. At midnight, all the people hugged each other once. How many hugs were given? | 7. Amiel made 8 dots at random on a piece of paper. Then he drew a line from each dot to every other dot on the piece of paper. How many lines did he draw? |
| 3. There were 10 cabins built in a woods. A separate path connects each cabin to each other cabin. How many paths are there? | 8. Ms. Whelan gave her journalism class an assignment to bring in 5 ads cut from newspapers on Monday morning. There are 21 students in her class. If everyone did the assignment, how many ads would be brought in? |
| 4. All the children in Ms. Garcia's second grade class gave everyone else a valentine. There were 20 students in the class, How many valentines were given out among the students? | 9. Alma's garden club decided to do a cookie exchange at Christmas time. There are 7 members in the club and they each baked a dozen cookies for everyone else in the group. If each member didn't bake any for herself, how many dozen cookies were exchanged? |
| 5. Six women living on the same street decided to have a recipe swap. Each woman copied her five favorite recipes for each of the other women. How many recipes did each woman receive? (Hint: read this problem carefully. it is not exactly like the other problems.) | 10. Two companies decided to merge, and met to sign papers. Company A sent 3 officers and Company B sent 4 officers. After the signing, each officer shook the hands of all the officers of the other company. How many handshakes were there? |
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Career Connection to Teaching with Technology