1. Plan for Problem-solving Section 0-1

2. Problem-Solving Plan Step 1Understand the problem Step 2Plan the solution Step 3Solve the problem Step 4Check your solution When planning to solve, choose a variable to represent one of the unspecific numbers in the problem. This means defining a variable.

3. Ling’s hallway is 10 feet long a 4 feet wide. He paid $200.00 to tile his hallway floor. How much did Ling pay per square foot for the tile? Understand Plan Solve Check

4. Emily’s family drove 254.6 miles. Their car used 19 gallons of gasoline. Describe the car’s gas mileage. Understand Plan Solve Check

5. Emily’s family drove 254.6 miles. Their car used 19 gallons of gasoline. Describe the car’s gas mileage. You can pick more than one answer. Countdown 90 A. 13.4 mpg B. About 13 mpg C. About 14 mpg D. 0.074 mpg E. 4837.4 mpg

6. A used book store had a sale on all paperbacks for $0.45 each. The store had $72.45 in sales. How many books did the store sell? Understand Plan Solve Check

7. A used book store had a sale on all paperbacks for $0.45 each. The store had $72.45 in sales. How many books did the store sell? Countdown 90 A. 160 books B. 33 books C. 161 books D. 62 books E. 145 books

8.  Homework  Section 0-1  P6 problems 1-6