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Twelfth Grade (Grade 12) Arithmetic and Number Concepts Questions

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Grade 12 Complex Numbers CCSS: HSN-CN.C.8
Factor [math]x^2+16[/math]
  1. [math]sqrt16i[/math]
  2. [math](x-4i)(x+4i)[/math]
  3. [math]+-sqrt4[/math]
  4. [math](x+2i)(x-2i)[/math]
Grade 12 Complex Numbers CCSS: HSN-CN.B.5
[math](6+5i)-(-2+i)[/math]
  1. [math]4+4i[/math]
  2. [math]8+4i[/math]
  3. [math]10i[/math]
  4. [math]12i[/math]
Grade 12 Complex Numbers CCSS: HSN-CN.A.2
[math](4i)^2[/math]
  1. [math]16i[/math]
  2. [math]4[/math]
  3. [math]16[/math]
  4. [math]8i[/math]
Grade 12 Complex Numbers CCSS: HSN-CN.C.8
Factor [math]x^2+12[/math]
  1. [math]2sqrt3i[/math]
  2. [math](x-4i)(x+4i)[/math]
  3. [math]+-sqrt12[/math]
  4. [math](x+2sqrt3i)(x-2sqrt3i)[/math]
Grade 12 Fractions and Ratios
Grade 12 Complex Numbers CCSS: HSN-CN.C.8
Factor [math]x^2+64[/math]
  1. [math](x+8i)(x-8i)[/math]
  2. [math](x-8)(x+8)[/math]
  3. [math]+-sqrt64[/math]
  4. [math](x+64i)(x-64i)[/math]
Grade 12 Fractions and Ratios
Grade 12 Arithmetic and Number Concepts
What is the equation of a circle with a center of (0,0) and a radius of 5?
  1. [math]x^2-y^2=25[/math]
  2. [math]x^2+y^2=25[/math]
  3. [math]x^2+y^2=5[/math]
  4. [math]x^2-y^2=5[/math]
Grade 12 Percents
Convert 78.9% to a decimal
  1. 0.0000789
  2. 0.00789
  3. 0.789
  4. 0.0000000000789
Grade 12 Complex Numbers CCSS: HSN-CN.C.8
Factor [math]x^2+100[/math]
  1. [math]sqrt100i[/math]
  2. [math](x-10)(x+10)[/math]
  3. [math]+-sqrt100[/math]
  4. [math](x+10i)(x-10i)[/math]
Grade 12 Number Sentences
Simplify 6.2 + 8.9 * 2
  1. 17.1
  2. 24
  3. 110
  4. 57.1
Grade 12 Primes, Factors, and Multiples
What is the prime factorization for 100?
  1. 2 x 2 x 5 x 5
  2. 10 x 10
  3. 5 x 5 x 5 x 5
  4. 3 x 5 x 2 x 2 x 2
Grade 12 Arithmetic and Number Concepts
Find the center and radius of: [math](x-2/3)^2+(y+1/2)^2=9/4[/math]
  1. Center (-2/3, -1/2) Radius of 3/2
  2. Center (2/3, -1/2) Radius of 3/2
  3. Center (2/3, -1/2) Radius of 9/4
  4. Center (-2/3, 1/2) Radius of 9/4
Grade 12 Complex Numbers CCSS: HSN-CN.C.8
Find the roots of [math]x^2+12[/math]
  1. [math]2sqrt3[/math]
  2. [math]+-2sqrt3i[/math]
  3. [math]+-sqrt12[/math]
  4. [math](x+2sqrt3i)(x-2sqrt3i)[/math]
Grade 12 Fractions and Ratios
[math](20.4*10^5)/(10.2*10^-3)=[/math]
  1. [math]2.0*10^2[/math]
  2. [math]2.0*10^8[/math]
  3. [math]3.0*10^-2[/math]
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