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Math Problems
Grade 6
Opposites of rational numbers
What is
20
%
20\%
20%
of
90
90
90
? Hint: We can think of
20
%
20\%
20%
as a common fraction.
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What is the opposite of
11
11
11
? Write your answer as an integer.
\newline
____
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What is the opposite of
−
1
1
7
-1\frac{1}{7}
−
1
7
1
? Write your answer as a mixed number.
\newline
____
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What is the opposite of
7.4
7.4
7.4
? Write your answer as a decimal.
\newline
____
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What is the opposite of
1.6
1.6
1.6
? Write your answer as a decimal.
\newline
____
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What is the opposite of
2.3
2.3
2.3
? Write your answer as a decimal.
\newline
____
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What is the opposite of
−
1
4
9
-1\frac{4}{9}
−
1
9
4
? Write your answer as a mixed number.
\newline
____
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What is the opposite of
−
4.92
-4.92
−
4.92
? Write your answer as a decimal.
\newline
____
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What is the opposite of
1
5
6
1\frac{5}{6}
1
6
5
? Write your answer as a mixed number.
\newline
____
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What is the opposite of
1.63
1.63
1.63
? Write your answer as a decimal.
\newline
____
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What is the opposite of
−
6.5
-6.5
−
6.5
? Write your answer as a decimal.
\newline
____
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What is the opposite of
37
37
37
? Write your answer as an integer.
\newline
____
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What is the opposite of
10
10
10
? Write your answer as an integer.
\newline
____
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What is the opposite of
−
2.29
-2.29
−
2.29
? Write your answer as a decimal.
\newline
____
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What is the opposite of
4
1
9
4\frac{1}{9}
4
9
1
? Write your answer as a mixed number.
\newline
____
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What is the opposite of
−
89
-89
−
89
? Write your answer as an integer.
\newline
____
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What is the opposite of
9.5
9.5
9.5
? Write your answer as a decimal.
\newline
____
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What is the opposite of
4.2
4.2
4.2
? Write your answer as a decimal.
\newline
____
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What is the opposite of
4.5
4.5
4.5
? Write your answer as a decimal.
\newline
____
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What is the opposite of
59
59
59
? Write your answer as an integer.
\newline
____
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What is the opposite of
6
6
6
? Write your answer as an integer.
\newline
____
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Find the sum by listing out
\newline
1
1
1
.
∑
g
=
4
9
5
g
+
3
\sum_{g=4}^{9} 5 g+3
∑
g
=
4
9
5
g
+
3
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The sum of a number and
15
15
15
is
−
23
-23
−
23
. Find the number
\newline
The unknown number is
□
\square
□
.
\newline
(Simplify your answer.)
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The sum of a number and
15
15
15
is
−
23
-23
−
23
. Find the number:
\newline
The unknown number is
□
\square
□
.
\newline
(Simplify your answer.)
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If
−
x
−
10
y
=
9
-\mathbf{x}-\mathbf{1 0 y}=\mathbf{9}
−
x
−
10y
=
9
is a true equation, what would be the value of
−
10
y
−
x
-\mathbf{1 0 y}-\mathbf{x}
−
10y
−
x
?
\newline
Answer:
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