Math 8, Target 4.4 Proficiency Assessment (Version 1) Learning Target 4.4 – Estimate the value of expressions involving irrational numbers. Complete the following questions on a separate document, showing your rationale. Do not use a calculator (that would defeat the purpose of this exercise!). 1) Simplify this irrational number, and estimate its decimal value: ±
!"
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2) Estimate the decimal value of the following expressions: a. 34 b. 2 + 34 c. 2 34 d.
e. −
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!
!"
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3) Estimate the value of: 3
!
!
+ ! if ℎ = 3, ! = 4, and ! = !. !
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4) Estimate the value of: 2 − !"