Missing Sequence Terms - SSAT Upper Level: Quantitative
Card 1 of 23
What is the missing term in the alternating sequence: $-1, 2, -3, 4, _, 6$?
What is the missing term in the alternating sequence: $-1, 2, -3, 4, _, 6$?
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$-5$. The sequence alternates signs on consecutive integers starting with negative for odd positions.
$-5$. The sequence alternates signs on consecutive integers starting with negative for odd positions.
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What is the missing term in the sequence of squares: $1, 4, 9, _, 25$?
What is the missing term in the sequence of squares: $1, 4, 9, _, 25$?
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$16$. The sequence consists of perfect squares, with the missing term being $4^2$.
$16$. The sequence consists of perfect squares, with the missing term being $4^2$.
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Find the missing term in the sequence: $100, 50, 25, _, 6.25$.
Find the missing term in the sequence: $100, 50, 25, _, 6.25$.
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$12.5$. The geometric sequence has a common ratio of $\frac{1}{2}$, multiplied by $25$ to determine the missing term.
$12.5$. The geometric sequence has a common ratio of $\frac{1}{2}$, multiplied by $25$ to determine the missing term.
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What is the missing term in the arithmetic sequence: $30, 24, 18, _, 6$?
What is the missing term in the arithmetic sequence: $30, 24, 18, _, 6$?
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$12$. The arithmetic sequence has a common difference of $-6$, added to $18$ to determine the missing term.
$12$. The arithmetic sequence has a common difference of $-6$, added to $18$ to determine the missing term.
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Identify the missing term in the arithmetic sequence: $-4, -1, 2, _, 8$.
Identify the missing term in the arithmetic sequence: $-4, -1, 2, _, 8$.
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$5$. The arithmetic sequence has a common difference of $3$, added to $2$ to determine the missing term.
$5$. The arithmetic sequence has a common difference of $3$, added to $2$ to determine the missing term.
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Find the missing term in the arithmetic sequence: $7, 11, 15, _, 23$.
Find the missing term in the arithmetic sequence: $7, 11, 15, _, 23$.
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$19$. The arithmetic sequence has a common difference of $4$, added to $15$ to determine the missing term.
$19$. The arithmetic sequence has a common difference of $4$, added to $15$ to determine the missing term.
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Find the missing term in the geometric sequence: $3, 6, 12, _, 48$.
Find the missing term in the geometric sequence: $3, 6, 12, _, 48$.
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$24$. The geometric sequence has a common ratio of $2$, multiplied by $12$ to determine the missing term.
$24$. The geometric sequence has a common ratio of $2$, multiplied by $12$ to determine the missing term.
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Find the missing term in the sequence: $10, 7, 14, 11, 22, _$.
Find the missing term in the sequence: $10, 7, 14, 11, 22, _$.
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$19$. The sequence alternates subtracting $3$ and multiplying by $2$, so subtract $3$ from $22$ for the missing term.
$19$. The sequence alternates subtracting $3$ and multiplying by $2$, so subtract $3$ from $22$ for the missing term.
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What is the missing term in the Fibonacci-type sequence: $2, 3, 5, 8, _, 21$?
What is the missing term in the Fibonacci-type sequence: $2, 3, 5, 8, _, 21$?
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$13$. Each term is the sum of the two preceding ones, so add $5$ and $8$ for the missing term.
$13$. Each term is the sum of the two preceding ones, so add $5$ and $8$ for the missing term.
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Find the missing term in the Fibonacci-type sequence: $1, 1, 2, 3, 5, _, 13$.
Find the missing term in the Fibonacci-type sequence: $1, 1, 2, 3, 5, _, 13$.
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$8$. Each term is the sum of the two preceding ones, so add $3$ and $5$ for the missing term.
$8$. Each term is the sum of the two preceding ones, so add $3$ and $5$ for the missing term.
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Identify the missing term in the geometric sequence: $160, 80, 40, _, 10$.
Identify the missing term in the geometric sequence: $160, 80, 40, _, 10$.
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$20$. The geometric sequence has a common ratio of $\frac{1}{2}$, multiplied by $40$ to determine the missing term.
$20$. The geometric sequence has a common ratio of $\frac{1}{2}$, multiplied by $40$ to determine the missing term.
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Find the missing term in the sequence with increasing differences: $1, 2, 4, 7, _, 16$.
Find the missing term in the sequence with increasing differences: $1, 2, 4, 7, _, 16$.
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$11$. The differences increase by $1$ each time, so add $4$ to $7$ to find the missing term.
$11$. The differences increase by $1$ each time, so add $4$ to $7$ to find the missing term.
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Identify the missing term in the sequence of cubes: $1, 8, 27, _, 125$.
Identify the missing term in the sequence of cubes: $1, 8, 27, _, 125$.
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$64$. The sequence consists of perfect cubes, with the missing term being $4^3$.
$64$. The sequence consists of perfect cubes, with the missing term being $4^3$.
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Find the missing term in the sequence of powers of $2$: $2, 4, 8, _, 32$.
Find the missing term in the sequence of powers of $2$: $2, 4, 8, _, 32$.
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$16$. The sequence consists of powers of $2$, with the missing term being $2^4$.
$16$. The sequence consists of powers of $2$, with the missing term being $2^4$.
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Identify the missing term in the sequence: $1, 2, 6, 24, _, 720$.
Identify the missing term in the sequence: $1, 2, 6, 24, _, 720$.
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$120$. The sequence consists of factorials, with the missing term being $5!$.
$120$. The sequence consists of factorials, with the missing term being $5!$.
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Identify the missing term in the sequence: $2, 5, 10, 17, _, 37$.
Identify the missing term in the sequence: $2, 5, 10, 17, _, 37$.
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$26$. The differences increase by $2$ each time, so add $9$ to $17$ for the missing term.
$26$. The differences increase by $2$ each time, so add $9$ to $17$ for the missing term.
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What is the missing term in the sequence: $4, 9, 19, 39, _, 159$?
What is the missing term in the sequence: $4, 9, 19, 39, _, 159$?
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$79$. Each term is the previous multiplied by $2$ and adding $1$, applied to $39$ for the missing term.
$79$. Each term is the previous multiplied by $2$ and adding $1$, applied to $39$ for the missing term.
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Identify the missing term in the sequence: $\frac{1}{2}, \frac{1}{4}, \frac{1}{8}, _, \frac{1}{32}$.
Identify the missing term in the sequence: $\frac{1}{2}, \frac{1}{4}, \frac{1}{8}, _, \frac{1}{32}$.
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$\frac{1}{16}$. The geometric sequence has a common ratio of $\frac{1}{2}$, multiplied by $\frac{1}{8}$ to determine the missing term.
$\frac{1}{16}$. The geometric sequence has a common ratio of $\frac{1}{2}$, multiplied by $\frac{1}{8}$ to determine the missing term.
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What is the missing term in the sequence: $\frac{3}{2}, \frac{3}{4}, \frac{3}{8}, _, \frac{3}{32}$?
What is the missing term in the sequence: $\frac{3}{2}, \frac{3}{4}, \frac{3}{8}, _, \frac{3}{32}$?
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$\frac{3}{16}$. The geometric sequence has a common ratio of $\frac{1}{2}$, multiplied by $\frac{3}{8}$ to determine the missing term.
$\frac{3}{16}$. The geometric sequence has a common ratio of $\frac{1}{2}$, multiplied by $\frac{3}{8}$ to determine the missing term.
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Find the missing term in the sequence of triangular numbers: $1, 3, 6, 10, _, 21$.
Find the missing term in the sequence of triangular numbers: $1, 3, 6, 10, _, 21$.
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$15$. Triangular numbers are sums of consecutive integers, with the missing being $10 + 5$.
$15$. Triangular numbers are sums of consecutive integers, with the missing being $10 + 5$.
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What is the missing term in the sequence: $2, 3, 5, 9, 17, _$?
What is the missing term in the sequence: $2, 3, 5, 9, 17, _$?
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$33$. Each term is the previous multiplied by $2$ minus $1$, applied to $17$ for the missing term.
$33$. Each term is the previous multiplied by $2$ minus $1$, applied to $17$ for the missing term.
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Identify the missing term in the sequence: $8, 4, 12, 6, 18, _$.
Identify the missing term in the sequence: $8, 4, 12, 6, 18, _$.
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$9$. The sequence alternates dividing by $2$ and multiplying by $3$, so divide $18$ by $2$ for the missing term.
$9$. The sequence alternates dividing by $2$ and multiplying by $3$, so divide $18$ by $2$ for the missing term.
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Find the missing term in the sequence with alternating operations: $1, 3, 6, 8, 11, _$.
Find the missing term in the sequence with alternating operations: $1, 3, 6, 8, 11, _$.
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$13$. The sequence alternates adding $2$ and $3$, so add $2$ to $11$ for the missing term.
$13$. The sequence alternates adding $2$ and $3$, so add $2$ to $11$ for the missing term.
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