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Ninth Grade (Grade 9) Arithmetic and Number Concepts Questions

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Grade 9 Number Types
Name all the sets to which the following number belongs: [math]sqrt16[/math]
  1. Irrational
  2. Rational only
  3. Rational & Integer
  4. Rational, Integer, Whole, & Natural
Grade 9 Absolute Value
Solve the equation [math]|1-2x|+6=9[/math].
  1. [math]x= -1[/math]
  2. [math]x= -2, 0[/math]
  3. [math]x= -1, 2[/math]
  4. [math]x= -2,1[/math]
Grade 9 Number Types
Which is not a rational number?
  1. [math] 1/3 [/math]
  2. [math] 0.25 [/math]
  3. [math] 0.6666666... [/math]
  4. [math] sqrt(2) [/math]
Grade 9 Number Types
Grade 9 Fractions and Ratios
Reduce the fraction.
  1. [math]27/36[/math]
  2. [math]9/12[/math]
  3. [math]7/9[/math]
  4. [math]3/4[/math]
Grade 9 Number Types
  1. Counting number
  2. Whole number
  3. Integer
  4. Rational
  5. Irrational
  6. Real
Grade 9 Number Types
What are integers?
  1. Positive and negative whole numbers and zero
  2. The point at which the x and y axes cross (0, 0)
  3. The line across the bottom of the graph
Grade 9 Patterns
Grade 9 Absolute Value
When isolating the absolute value part of the equation, what steps should you do and in what order?

[math]3-4|x-4| =27 [/math]
  1. Add 4 on both sides, divide both sides by 3
  2. Subtract 3 on both sides, divide both sides by 4
  3. Subtract 3 on both sides, add 4 on both sides
  4. Add 3 on both sides, multiply both sides by 4
  5. Subtract 3 on both sides, divide both sides by -4
Grade 9 Number Types
Classify the number -7.23.
  1. Integer, rational, real
  2. Integer, irrational, real
  3. Rational, real
  4. Irrational, real
Grade 9 Number Types
Natural Numbers are also called                   
  1. Counting Numbers
  2. Elementary Numbers
  3. False Numbers
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