Chapter Two Lesson Five and Six

Zero Property of Multiplication When you multiply any number by 0, the product is 0. Identity Property of Multiplication When you multiply any number by 1, the product is the number.

Making an Organized List Bread Fruits Drink granola bar apple juice granola bar apple milk granola bar orange juice granola bar orange milk crackers apple juice crackers apple milk crackers orange juice crackers orange milk Understanding graphic sources such as lists when you read in math can help you use the problem-solving strategy, Make an Organized List. Elliot could choose one bread snack, one fruit and one drink for his after school snack. He made an organized list to show the different combinations of snacks he could have after school. granola bar crackers apple orange juice milk

Bread Fruits Drink granola bar apple juice granola bar apple milk granola bar orange juice granola bar orange milk crackers apple juice crackers apple milk crackers orange juice crackers orange milk How many items are in a snack? What types are they? How many different items are there in all? How many of the combinations include an apple? 3 Bread, fruit, & drink 6 4 Could Elliot have organized his list in a different way?

Jill has only enough money to buy 3 jars of glitter for an art project. The colors she is trying to choose from include gold, silver, red, and blue. Jar 1 Jar 2 Jar 3 gold silver blue gold silver red gold blue red silver blue red How many different combinations of 3 colors are possible? How many different combinations include gold and silver? Why didn’t Jill add a color that shows silver, blue, gold? 4 2

What’s for Breakfast? Cereal Fruit Drink Oatmeal banana orange juice Corn flakes strawberries apple juice peach How many different breakfast combinations are possible? 2 x 3 x 2 = 12

The boss of a big company needed to call one of his employees about an urgent problem with one of the main computers, dialed the employee's home phone number and was greeted with a child's whisper, "Hello." "Is your daddy home?" he asked. "Yes" whispered the small voice. "May I talk with him?" The child whispered, "No." Surprised, and wanting to talk with an adult, the boss asked, "Is your mommy there?" "Yes." "May I talk with her?" Again the small voice whispered, "No." Hoping there was somebody with whom he could leave a message, the boss asked, "Is anybody else there?" "Yes," whispered the child, "a policeman." Wondering what a cop would be doing at his employee's home, the boss asked, "May I speak with the policeman?" "No, he's busy", whispered the child. "Busy doing what?" "Talking to Daddy and Mommy and the Fireman", came the whispered answer. Growing concerned and even worried as he heard what sounded like a helicopter through the earpiece on the phone the boss asked, "What is that noise?" "A hello-copper" answered the whispering voice. "What is going on there?" asked the boss, now alarmed. In an awed whispering voice the child answered, "The search team just landed the hello- copper." Alarmed, concerned, and even more then just a little frustrated the boss asked, "What are they searching for?" Still whispering, the young voice replied along with a muffled giggle: "ME."

In case Batman forgets THE END