Warm up problem How can you use eight 8s to get the number 1,000? (The only operation you can use is addition)
Quiz time! 1. What is a math operation? a) something a doctor does to help a sick number b) a process used on numbers c) a synonym for factor d) the product of a problem
Quiz time! 2. What is a factor? a) a machine that makes facts b) the answer to a multiplication problem c) an antonym for “opinion” d) a number multiplied with another number
Quiz time! 3. What is a product? a) the answer to an addition problem b) the answer to a subtraction problem c) the answer to a multiplication problem d) the answer to a division problem
Quiz time! 4. Which statement is correct? a) 6 divided with 3 equals 2. b) 6 divided from 3 equal 2. c) 6 divided by 3 equal 2. d) 6 divided by 3 equals 2.
Quiz time! 4. Which of the following is always a noun? a) multiply b) multiplied c) multiplication d) times
Problem 1 In Mr. Abbott’s class, 3 students like to read comic books. Twice as many students like to read mystery books. Three times that number of students like fantasy books more than mystery books. How many students are in the class ? Think : 1. Data : comic = 3; Mystery = 2 x comic ; Fantasy = 3 x mystery 2. Use 1 unit ( box ) to represent 3 students 3. Draw a model and fill in the data
Problem 1 Solve : Comic Mystery Fantasy Mystery 2 x 3 = 6 Fantasy 3 x 6 = = 27 ANSWER : There are 27 students in the class. 3 ?
Problem #2 Yesterday, the principal put new iPads outside the 4 th grade classrooms. It was a race to grab the iPads ! 406 got 6 times as many iPads as got twice as many as got four iPads. How many iPads did 405 and 406 get altogether ? Think : 1. Data : 404 = 4; 404 = 2 x 405; 406= 6 x Use 1 unit ( box ) to represent 4 iPads 3. Draw a model and fill in the data
Problem 2 Solve : 2 x 4 = 6 x 8 = = 56 ANSWER : 405 and 406 got 56 iPads. 4 ?