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Ninth Grade (Grade 9) Arithmetic and Number Concepts Questions

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Grade 9 Number Types
Which is an irrational number?
  1. √16
  2. √100
  3. √50
  4. √81
Grade 9 Number Types
Which number is not rational?
  1. 4
  2. .3
  3. 6.171717
  4. 23
  5. √3
Grade 9 Fractions and Ratios CCSS: HSG-MG.A.2
A study is done on a park having an area of 325 acres and is found to have 85,230 trees. How many trees per acre does the park have?
  1. .004 trees/acre
  2. 2,622 trees/acre
  3. 426 trees/acre
  4. 262 trees/acre
Grade 9 Rational and Irrational Numbers
π is a real number.
  1. True
  2. False
Grade 9 Literal Equations CCSS: HSA-CED.A.4
Solve 3xy-4=xy+8 for x.
  1. x=3y
  2. x=2y
  3. x=-2y
  4. x=6y
  5. x=1y
Grade 9 Systems of Equations
Solve the system.

5x-3y+2z=39
4x+4y-3z=34
3x-2y+6z=14
  1. (-1,8,-2)
  2. (8,-1,-2)
  3. (-2,8,-1)
  4. No Solution
Grade 9 Absolute Value
-(-|3|-|-8|)=11
  1. True
  2. False
Grade 9 Literal Equations CCSS: HSA-CED.A.4
Solve for s.-6=t+5s
  1. s=-6-t-5
  2. s=-6-t5
  3. s=6+t5
  4. s=-6-5t
Grade 9 Number Types
List all the classifications for 1-7.
  1. Irrational, real
  2. Integer, irrational, real
  3. Integer, rational, real
  4. Rational, real
Grade 9 Arithmetic and Number Concepts
The science of numbers.
  1. Arithmetic
  2. Addition
  3. Subtraction
  4. Division
  5. Multiplication
  6. Sum
  7. Difference
  8. Quotient
Grade 9 Primes, Factors, and Multiples
Find the GCF.

96m2n,48m3n
  1. 48m2n
  2. m2n
  3. 16n
  4. 54m2n
Grade 9 Systems of Equations
Solve the system.

x+y+4z=5
-2x+2z=3
3x+y-2z=0
  1. (-1,4,12)
  2. (12,-1,4)
  3. (4,-1,12)
  4. No Solution
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