Open Up - Grade 6 - Mathematics - Unit 3 - Lesson 15

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Last updated over 2 years ago
15 Questions
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1.
To find 40% of 75, Priya calculates 2/5*75. Does herĀ calculationĀ give the correct value for 40% of 75?
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2.
If represents a number, does 2/5*x always represent 40% of that number?
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3.
Han spent 75 minutes practicing the piano over the weekend. Priya practiced the violin for 152% as much time as Han practiced the piano. How long did she practice?
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4.
Han spent 75 minutes practicing the piano over the weekend. Tyler practiced the clarinet for 64% as much time as Han practiced the piano. How long did he practice?
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5.
Last Sunday 1,575 people visited the amusement park. 56% of the visitors were adults, 16% were teenagers, and 28% were children ages 12 and under. Find the number of adults, teenagers, and children that visited the park.
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6.
Order from greatest to least:
  1. 12% of 700
  2. 300% of 26
  3. 55% of 180
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7.
20% of 60 is ________
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8.
25% of ________ is 6
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9.
________% of 100 is 14
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10.
50% of 90 is ________
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11.
10% of ________ is 7
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12.
30% of 70 is ________
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13.
A shopper needs 24 sandwich rolls. The store sells identical rolls in 2 differently sized packages. They sell a six-pack for $5.28 and a four-pack for $3.40. Should the shopper buy 4 six-packs or 6 four-packs?
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14.
On a field trip, there are 3 chaperones for every 20 students. There are 92 people on the trip.

How many chaperones are there?
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15.
On a field trip, there are 3 chaperones for every 20 students. There are 92 people on the trip.

How many children are there?
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Source: Open Up Resouces (Download for free at openupresources.org.)