Study

Unit 7 Review

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  • 22 x 23
    506
  • 249 x 4
    996
  • There are two sections to mow. The first one is 21 feet wide by 49 feet long. The second one is 6 feet wide and 29 feet long. How many square feet of grass do they have to to mow in all? Write an equation to represent this problem.
    (21 x 49) + (6 x 29) = g
  • Rewrite the pair of fractions with a common denominator.
    Possible Answer 2/6 and 3/6
  • 22 x 30
    660
  • 30 x 4
    120
  • 80 x 5
    400
  • Which answer is the best estimate for this problem? 1,200 1,300 1,400 1,500
    1,500
  • Who is correct? Why?
    Ari because 4/10= 40/100 40/100 + 35/100 = 75/100
  • 24 x 20
    480
  • 40x60
    2,400
  • Rewrite the pair of fractions with a common denominator.
    Possible Answer: 8/24 and 6/24
  • 60 x 50
    3,000
  • 40 x 7
    280
  • Use numbers, labeled sketches, or words to model and solve this problem.
    1,029 + 174 = 1,203 square feet
  • 642 x 5
    3,210
  • Fill in the blank with the correct symbol; <, >, or =
    <
  • Molly got 1,000 square feet for her answer. Is Molly's answer reasonable? Why or why not? Use estimation to help answer this question.
    Molly's answer is not reasonable (explanations will vary)
  • Sketch and name two fractions that are equivalent to 2/3.
    Possible Answers: 4/6 6/9 8/12
  • 24 x 8
    192
  • Fill in the blank with the correct symbol; <, >, or = 0.50 ___ 0.05
    0.50 > 0.05