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Evaluate Multiplication and Division Expressions

Evaluate Multiplication and Division Expressions. SWBAT find the value of algebraic expressions involving multiplication or division. Review. What does it mean to evaluate? Substitute the given number for the variable . Solve or compute to find the value. . Examples.

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Evaluate Multiplication and Division Expressions

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  1. Evaluate Multiplication and Division Expressions SWBAT find the value of algebraic expressions involving multiplication or division

  2. Review • What does it mean to evaluate? • Substitute the given number for the variable. • Solve or compute to find the value.

  3. Examples • Gilbert drives a train at an average rate of 130 hours per hour. After a number of hours the train reaches its destination. How many miles does the train travel in 2.5 hours? • Set up as an expression with a variable: • 130x • Evaluate for the given value: • 130(2.5) • 325

  4. Examples • 33t, for t = 1.3 • 345 ÷ f, for f = 15 • How do I calculate 0.25 · 8 ÷ 2? • 0.5r, for r = 6000 • 4.2n, for n = 20 • n ÷ 160, for n = 2992 • a(2.1x0.02), for a = 40

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