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MSTAR Assessment #2

MSTAR Assessment #2. Come in QUIETLY Clear your desk except for a pencil The test will begin 2 minutes after the second bell rings 46 minutes to answer 24 questions Put all your answers on your answer document When you finish- read silently or put your head down

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MSTAR Assessment #2

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  1. MSTAR Assessment #2 • Come in QUIETLY • Clear your desk except for a pencil • The test will begin 2 minutes after the second bell rings • 46 minutes to answer 24 questions • Put all your answers on your answer document • When you finish- read silently or put your head down • ABSOLUTELY NO TALKING DURING THE EXAM

  2. Warm-It Up Evaluate each expression for x = -1/2. 1.x + 2 2.X + 4 – 22 3.x – 8 4. 10x – 4 5.8x - 90 6.-50x - (-7)

  3. Whiteboard RULES Pens on your desk until I tell you to pick them up and write Pens down when I say pens down ONLY do the math on the whiteboards There are 27 markers in my box- no one leaves class until I have collected all of my markers and there are 27 markers back in my box Breaking any of these rules will result in you losing your whiteboard for the day.

  4. z + 6 = 9 z + 6 = 9 - 6 -6 z = 3 (3) + 6 = 9 9 = 9 • Draw “the river” • Isolate the Variable (using the opposite operation) • Simplify vertically • Substitute and Check Answer

  5. y + 7 = 14 y + 7 = 14 - 7 -7 y = 7 (7) + 7 = 14 14 = 14 • Draw “the river” • Isolate the Variable (using the opposite operation) • Simplify vertically • Substitute and Check Answer

  6. S + 3 = -5 s + 3 =-5 - 3 -3 s = -8 (-8) + 3 = -5 -5 = -5 • Draw “the river” • Isolate the Variable (using the opposite operation) • Simplify vertically • Substitute and Check Answer

  7. d + 9 = -3 d + 9 =-3 - 9 -9 d = -12 (-12) + 9 = -3 -3 = -3 • Draw “the river” • Isolate the Variable (using the opposite operation) • Simplify vertically • Substitute and Check Answer

  8. - 4 = f – 5 -4 = f – 5 +5 +5 1 = f -4 = (1) – 5 -4 = -4 • Draw “the river” • Isolate the Variable (using the opposite operation) • Simplify vertically • Substitute and Check Answer

  9. - 3 = s – 7 -3 = s – 7 +7 +7 4 = s -3 = (4) – 7 -3 = -3 • Draw “the river” • Isolate the Variable (using the opposite operation) • Simplify vertically • Substitute and Check Answer

  10. 5 = k – 10 5 =k –10 +10 + 10 15 = k 5 =(15) –10 5 = 5 • Draw “the river” • Isolate the Variable (using the opposite operation) • Simplify vertically • Substitute and Check Answer

  11. 4 = k – 9 4 = k – 9 +9 +9 13 = f 4 =(13) – 9 4 = 4 • Draw “the river” • Isolate the Variable (using the opposite operation) • Simplify vertically • Substitute and Check Answer

  12. -12 + b = 3 -12 + b = 3 +12 +12 b = 15 -12+(15) = 3 3 = 3 • Draw “the river” • Isolate the Variable (using the opposite operation) • Simplify vertically • Substitute and Check Answer

  13. - 8 + r = 2 -8 + r = 2 +8 +8 r = 10 -8+(10) = 2 2 = 2 • Draw “the river” • Isolate the Variable (using the opposite operation) • Simplify vertically • Substitute and Check Answer

  14. 5 + c = -6 5 + c = -6 -5 -5 c = -11 5 +(-11)= -6 -6 = -6 • Draw “the river” • Isolate the Variable (using the opposite operation) • Simplify vertically • Substitute and Check Answer

  15. 7 + y = - 8 7 + y = -8 -7 - 7 y = -15 7 +(-15) = -8 -8 = -8 • Draw “the river” • Isolate the Variable (using the opposite operation) • Simplify vertically • Substitute and Check Answer

  16. 2x = -30 2 2 x =-15 2(-15) = 30 -30 = -30 • Draw “the river” • Isolate the Variable (using the opposite operation) • Simplify vertically • Substitute and Check Answer

  17. -5x = -25 -5 -5 x =5 -5(5) = -25 -25 = -25 • Draw “the river” • Isolate the Variable (using the opposite operation) • Simplify vertically • Substitute and Check Answer

  18. -16 = 8x 8 8 -2 =x -16 = 8(-2) -16 = -16 • Draw “the river” • Isolate the Variable (using the opposite operation) • Simplify vertically • Substitute and Check Answer

  19. (8) -4 = -32 = x -4 = -32/8 -4 = -4 (8) • Draw “the river” • Isolate the Variable (using the opposite operation) • Simplify vertically • Substitute and Check Answer

  20. (6) -11= -66 = x -11 = -66/6 -11 = -11 (6) • Draw “the river” • Isolate the Variable (using the opposite operation) • Simplify vertically • Substitute and Check Answer

  21. (-4) = 13 x = -52 -52/-4 = 13 13 = 13 (-4) • Draw “the river” • Isolate the Variable (using the opposite operation) • Simplify vertically • Substitute and Check Answer

  22. -21 = 2x 2 2 -10.5 = x -21= 2(-10.5) -21 = -21 • Draw “the river” • Isolate the Variable (using the opposite operation) • Simplify vertically • Substitute and Check Answer

  23. -5x = 23 -5 -5 x = -4.6 -5(-4.6)= 23 23 = 23 • Draw “the river” • Isolate the Variable (using the opposite operation) • Simplify vertically • Substitute and Check Answer

  24. -11 + b = 3 +11 +11 b = 14 -11+(14) = 3 3 = 3 • Draw “the river” • Isolate the Variable (using the opposite operation) • Simplify vertically • Substitute and Check Answer

  25. 4 + c = -7 -4 -4 c = -11 4 +(-11)= -7 -7 = -7 • Draw “the river” • Isolate the Variable (using the opposite operation) • Simplify vertically • Substitute and Check Answer

  26. Alfalfa messed up… again. Alfalfa works super hard to learn math, but he makes a lot of mistakes. He was given this problem in his home work last night: Find the mistakes he made and help him solve the problem correctly.

  27. Alfalfa messed up… again. Alfalfa works super hard to learn math, but he makes a lot of mistakes. He was given this problem in his home work last night: Find the mistakes he made and help him solve the problem correctly.

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