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Math Problems
Grade 6
Identify equivalent expressions I
Which expression is equivalent to
3
r
+
7
r
3r + 7r
3
r
+
7
r
?
\newline
Choices:
\newline
(A)
10
r
10r
10
r
\newline
(B)
r
+
10
r + 10
r
+
10
\newline
(C)
9
r
9r
9
r
\newline
(D)
r
10
r^{10}
r
10
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Which expression is equivalent to
8
y
+
4
y
8y + 4y
8
y
+
4
y
?
\newline
Choices:
\newline
(A)
y
12
y^{12}
y
12
\newline
(B)
y
+
12
y + 12
y
+
12
\newline
(C)
12
y
12y
12
y
\newline
(D)
13
y
13y
13
y
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Which expression is equivalent to
8
d
+
4
d
8d + 4d
8
d
+
4
d
?
\newline
Choices:
\newline
(A)
12
d
12d
12
d
\newline
(B)
11
d
11d
11
d
\newline
(C)
d
+
12
d + 12
d
+
12
\newline
(D)
d
12
d^{12}
d
12
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Which expression is equivalent to
2
f
+
5
f
2f + 5f
2
f
+
5
f
?
\newline
Choices:
\newline
(A)
8
f
8f
8
f
\newline
(B)
7
f
7f
7
f
\newline
(C)
f
7
f^7
f
7
\newline
(D)
f
+
7
f + 7
f
+
7
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Which expression is equivalent to
2
k
+
5
k
2k + 5k
2
k
+
5
k
?
\newline
Choices:
\newline
(A)
7
k
7k
7
k
\newline
(B)
6
k
6k
6
k
\newline
(C)
k
+
7
k + 7
k
+
7
\newline
(D)
k
7
k^7
k
7
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Which expression is equivalent to
4
k
+
3
k
4k + 3k
4
k
+
3
k
?
\newline
Choices:
\newline
(A)
k
+
7
k + 7
k
+
7
\newline
(B)
7
k
7k
7
k
\newline
(C)
6
k
6k
6
k
\newline
(D)
k
7
k^7
k
7
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Which expression is equivalent to
3
r
+
7
r
3r + 7r
3
r
+
7
r
?
\newline
Choices:
\newline
(A)
r
+
10
r + 10
r
+
10
\newline
(B)
10
r
10r
10
r
\newline
(C)
11
r
11r
11
r
\newline
(D)
r
10
r^{10}
r
10
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Which expression is equivalent to
7
g
+
2
g
7g + 2g
7
g
+
2
g
?
\newline
Choices:
\newline
(A)
g
+
9
g + 9
g
+
9
\newline
(B)
10
g
10g
10
g
\newline
(C)
9
g
9g
9
g
\newline
(D)
g
9
g^9
g
9
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Which expression is equivalent to
5
h
+
h
5h + h
5
h
+
h
?
\newline
Choices:
\newline
(A)
h
+
6
h + 6
h
+
6
\newline
(B)
h
6
h^6
h
6
\newline
(C)
6
h
6h
6
h
\newline
(D)
7
h
7h
7
h
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Which expression is equivalent to
3
r
+
3
r
3r + 3r
3
r
+
3
r
?
\newline
Choices:
\newline
(A)
r
+
6
r + 6
r
+
6
\newline
(B)
r
6
r^6
r
6
\newline
(C)
5
r
5r
5
r
\newline
(D)
6
r
6r
6
r
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Which decimal is equivalent to
26
9
\frac{26}{9}
9
26
?
\newline
Choose
1
1
1
answer:
\newline
(A)
2
2
2
.
8
8
8
\newline
(B)
2.
8
‾
2 . \overline{8}
2.
8
\newline
(C)
2.889
\mathbf{2 . 8 8 9}
2.889
\newline
(D)
2
2
2
.
9
9
9
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Which exponential expression is equivalent to
k
\sqrt{k}
k
?
\newline
Choose
1
1
1
answer:
\newline
(A)
1
k
2
\frac{1}{k^{2}}
k
2
1
\newline
(B)
1
k
1
2
\frac{1}{k^{\frac{1}{2}}}
k
2
1
1
\newline
(C)
k
2
k^{2}
k
2
\newline
(D)
k
1
2
k^{\frac{1}{2}}
k
2
1
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Which of the following expressions is equivalent to
−
(
3
x
2
+
5
)
-\left(3 x^{2}+5\right)
−
(
3
x
2
+
5
)
?
\newline
Choose
1
1
1
answer:
\newline
(A)
−
8
x
2
-8 x^{2}
−
8
x
2
\newline
(B)
−
3
x
2
−
5
-3 x^{2}-5
−
3
x
2
−
5
\newline
(C)
−
3
x
2
+
5
-3 x^{2}+5
−
3
x
2
+
5
\newline
(D)
3
x
2
−
5
3 x^{2}-5
3
x
2
−
5
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