Math PT

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Across
  1. 1. If a = 6, b = 3, c = 2, what is 3c - b + 2a ?
  2. 2. 2 { 1+ [ 4 ( 3 ) +3 } = ?
  3. 3. How many sides does a polygon have if its interior angles sum 1440 degrees?
  4. 4. What is the interior angle if the polygon has 14 sides?
  5. 6. All triangles sum up to how many degrees?
  6. 7. Round off 7286 to the nearest thousand!
  7. 8. 560-4y = 60, what is the value of y?
Down
  1. 1. How many edges do a cube has?
  2. 2. Round off 347 to the nearest hundred!
  3. 3. What is the GCF of 850 and 680?
  4. 4. 25 - [ 40 = { 86-6-1 ) } ] = ?
  5. 5. X - 50 = 150 , what is the value of x ?
  6. 6. What is the smallest 3 digit prime number?
  7. 9. The sum of the first seven prime numbers divided by 2 is?