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CBA CBA Review Review
| Date post: | 12-Jan-2016 |
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CBACBA
Review Review
Number Number TheoryTheory
Find the Find the errorerror FractionsFractions AlgebraAlgebra DecimalsDecimals
$100 $100 $100 $100 $100
$200 $200 $200 $200 $200
$300 $300 $300 $300 $300
$400 $400 $400 $400 $400
$500 $500 $500 $500 $500
Answer
Find the GCF forFind the GCF for
48 and 6448 and 64
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1616
Answer
Find the GCF for 200, Find the GCF for 200, 450, and 600450, and 600
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5050
Answer
The A-train leaves every 15 The A-train leaves every 15 minutes and the B-train leaves minutes and the B-train leaves
every 20 minutes. If they just left every 20 minutes. If they just left at the same time, when is the at the same time, when is the
next time they will leave at the next time they will leave at the same time again?same time again?
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60 minutes or 1 hour60 minutes or 1 hour
Answer
Carla has 30 blue beads, 60 red Carla has 30 blue beads, 60 red beads, and 72 white beads. beads, and 72 white beads.
What is the maximum number of What is the maximum number of friends to whom Carla can give friends to whom Carla can give the same number of the same the same number of the same beads and have no beads left beads and have no beads left
over? How many will each get?over? How many will each get?
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6 friends, each friend will get 5 blue beads, 10 red,
and 12 white
Answer
20 + 8(320 + 8(333 – 7) ÷ 4 × 5 – – 7) ÷ 4 × 5 – 1717
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203203
Answer
Erica was evaluating the Erica was evaluating the expression below. What should expression below. What should Erica do to correct the error that Erica do to correct the error that
she made?she made?
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Divide 56 by 7 because Divide 56 by 7 because operations are performed left to operations are performed left to
rightright
Answer
Your friend divided two decimal numbers. Her workYour friend divided two decimal numbers. Her work
Is shown in the box below. What should your Is shown in the box below. What should your
friend change in order to divide the two friend change in order to divide the two
decimal numbers correctly?decimal numbers correctly?
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Rewrite the problem as 1,456 Rewrite the problem as 1,456 divided by 7divided by 7
Answer
The steps your friend took to divide the 2 mixed numbers are shown below. What should your friend
change in order to divide the two mixed numbers correctly?
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Multiply by the Multiply by the reciprocal of 9/4reciprocal of 9/4
Answer
Describe and correct the Describe and correct the error in rewriting the error in rewriting the
expressionexpression
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The 6 was not The 6 was not distributed to the 8 distributed to the 8
inside the inside the parenthesesparentheses
6y + 486y + 48
Answer
Describe and correct the error in simplifying
the expression.
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Adding before Adding before subtractingsubtracting
6x + 5x = 11x6x + 5x = 11x
Answer
Mary had 6 Mary had 6 77//88 pizzas for a pizzas for a party. How much pizza was party. How much pizza was left if Mary and her friends ate left if Mary and her friends ate 5 5 22//3 3 pizzas?pizzas?
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1 5/24 1 5/24 pizzaspizzas
Answer
Find the sum Find the sum of 7 ¾ and 9 of 7 ¾ and 9
½.½.
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17 ¼ 17 ¼
Answer
9 9 33//44 x 4 x 4 22//33
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45 1/245 1/2
Answer
7 ¼ ÷ 2 ½ 7 ¼ ÷ 2 ½
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2 9/102 9/10
Answer
27 ¼ - 5 7/827 ¼ - 5 7/8
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21 3/8 21 3/8
Answer
Simplify 13 + (m + Simplify 13 + (m + 25.5)25.5)
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m + 38.5m + 38.5
Answer
Marion wants to rent a canoe to go out on a lake. The cost is $2.00 plus $1.50 for each
hour.
Using numbers, symbols, and the variable n, write an
expression for how much it would cost to rent the canoe
for n hours.
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$2.00 + $1.50n
(or any equivalent expression)
Answer
SimplifySimplify
3(4 + 2y)3(4 + 2y)
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12 + 6y12 + 6y
AnswerAnswer
Mike made the input-output chart below:Mike made the input-output chart below:
What equation is trueWhat equation is true
for all values in the chart?for all values in the chart?
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4x - 3 = y4x - 3 = y
(or any (or any equivalent equivalent equation)equation)
AnswerAnswer
SimplifySimplify
17 + 5(2x – 3) - 217 + 5(2x – 3) - 2
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10x10x
AnswerAnswer
99.989 + 0.05
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100.039
AnswerAnswer
How much change should you get if you bought two $1.99 items
and paid with a ten-dollar bill?
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$6.02
AnswerAnswer
Find the product of 385.67 and 2.4.
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925.608
AnswerAnswer
Calculate 2.525 divided by 0.05.
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50.5
AnswerAnswer
Which is the better buy? Which is the better buy? A 12 oz. jar of peanut A 12 oz. jar of peanut
butter for $2.94 or a 16 butter for $2.94 or a 16 oz. jar for $3.36?oz. jar for $3.36?
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The 16-ounce The 16-ounce jar.jar.
