Missing Number in Sequences
ISEE Lower Level · Flashcards · Application
ISEE LOWER LEVEL · FLASHCARDS
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QUESTION
What is the missing term in the arithmetic sequence
1
,
4
,
7
,
□
1, 4, 7, \square
1
,
4
,
7
,
□
?
QUESTION
What is the missing term in the arithmetic sequence
5
4
,
3
4
,
□
,
−
1
4
\frac{5}{4}, \frac{3}{4}, \square, -\frac{1}{4}
4
5
,
4
3
,
□
,
−
4
1
?
QUESTION
What is the missing term in the arithmetic sequence
1
2
,
3
2
,
□
,
7
2
\frac{1}{2}, \frac{3}{2}, \square, \frac{7}{2}
2
1
,
2
3
,
□
,
2
7
?
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ANSWER
5
2
\frac{5}{2}
2
5
. The common difference is
1
1
1
, determined from
3
2
−
1
2
\frac{3}{2} - \frac{1}{2}
2
3
−
2
1
, and added to
3
2
\frac{3}{2}
2
3
to find the missing term.
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