ZMath 150  - Unit 5: Order of Operations, Perfect Squares, Square Roots
For problems #1 through #6, evaluate the expression.

1)

10 + 10 ÷ 10


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2) 8 x (10 – 4)

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3)

5 × 5 + 12 ÷ 6


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4) (16 – 4) + 9

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5) 7 x (7 - 4) + 20

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6)

27 ÷ 3 + 7 × 8 – 2


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7) Around what two numbers would you place parenthesis to make the math sentence true? 14 – 3 x 2 = 22

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8)

102


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9)

82


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10)

482


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11) Complete this pattern (Hint: list the first ten perfect squares.) 1, 4, 9, ___, ____, ____, ____, ____, 81, ____

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For problems #12 through #15, find the square root of the given perfect square.

12)

Solve.


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13)

Solve.


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14)

Solve.


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15)

Solve.


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Review

16) Samuel has 283 baseball cards. His friend, Elijah, gave him 17 more cards. He keeps his cards in a scrapbook that holds 15 cards per page. How many pages are filled now?

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17) Jeanette has a 60-inch ribbon and is going to cut it into smaller sections, each 15 inches in length. How many cuts will she make? (Be careful with this one – you may want to draw a picture.)

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18) A trip to Florida took 52 hours. How many days and hours did the trip take?

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19) David drew this picture to help solve a problem. What problem could he be trying to solve?

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20) Find the sum. 536 + 3764 + 48 + 999

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21) Find the product. 2756 x 40

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22) Find the difference. 7009 – 3452

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23) Penny spent $52 at the Mall. Her sister spent three times as much as she did. How much did her sister spend?

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24) In the video game, Aliens Rule, the top score is 340. Andrew’s score is 236. How many more points must he score to replace the top score?

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25)

These four different ways show how 2, 3, and 5 can be added to get 10. What property of addition is being used to write the different ways?

2 + 3 + 5 = 10
     or
2 + 5 + 3 = 10
     or
5 + 2 + 3 = 10
     or
5 + 3 + 2 = 10


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