Problem of the Day
! The number 325 contains the digits 2, 3, and 5. These three digits can be ordered in other ways to make different numbers. Each order is called a permutation of the three digits. How many permutations are possible? List them.
1) 12!3) 1 and 50, 2 and 25, 5 and 10!5) 90,000,000!7) -10, -7, -2, 0, 5, 8!9) posts!11) the temperature fell by 7 degrees!13) $82.46!15) $1.80!
17) 10!19) 92,459!21) $7.55!23) 8 • 7 • 5 (given)! 7 • 8 • 5 (comm. prop. )! 7 • 40 (multiply 8 by 5)! 280 (multiply 7 by 40)!25) a. 80,000 b. -200 c. 2!27) right angle!29) by adding segments XY and YZ!
Lesson 7 Written Practice
Fractions and Percents; Inch Ruler
! List real-world situations in which you encounter fractions and percents.
! How can a fraction and a percent be used to name the same part of a whole?
! List real-world situations in which you have measured length or distance.
! What are tick marks? On a ruler, how do you determine the fraction of an inch that each tick mark represents?
Practice/Homework
! What fraction of this circle is shaded green?
! What percent of this circle is shaded green?
! Draw a circle to illustrate 2 ¾.
! Arrange these fractions in order from least to greatest: ¼, ½, 1/8, 1/16
LN 9:Adding, Subtracting, Multiplying Fractions Reciprocals
! invert
! reciprocal
! Inverse property of Multiplication
! The product of a number and its reciprocal is _____.
LN 9:Adding, Subtracting, Multiplying Fractions Reciprocals
! 1/6 + 5/6
! 4/5 - 3/5
! 3/5 x 1/2 x 3/4
! 14 2/7% + 14 2/7%
! Reciprocal of 1/2; 8/6; 3
! Solve for m: 3/4 m = 1; 6m = 1
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