Understanding Teens - 1st Grade Math
Card 1 of 15
Identify the tens digit in any teen number from $11$ to $19$.
Identify the tens digit in any teen number from $11$ to $19$.
Tap to reveal answer
The tens digit is $1$. All teens from $11$-$19$ share this tens digit.
The tens digit is $1$. All teens from $11$-$19$ share this tens digit.
← Didn't Know|Knew It →
What does the digit $1$ in the tens place mean in a number like $16$?
What does the digit $1$ in the tens place mean in a number like $16$?
Tap to reveal answer
It means $1$ ten. Each digit $1$ in tens place equals ten ones.
It means $1$ ten. Each digit $1$ in tens place equals ten ones.
← Didn't Know|Knew It →
What does the number $18$ represent in tens and ones?
What does the number $18$ represent in tens and ones?
Tap to reveal answer
$18$ is $1$ ten and $8$ ones. Each teen number equals $10$ plus its ones digit.
$18$ is $1$ ten and $8$ ones. Each teen number equals $10$ plus its ones digit.
← Didn't Know|Knew It →
What does the number $17$ represent in tens and ones?
What does the number $17$ represent in tens and ones?
Tap to reveal answer
$17$ is $1$ ten and $7$ ones. Teen numbers show place value with tens and ones.
$17$ is $1$ ten and $7$ ones. Teen numbers show place value with tens and ones.
← Didn't Know|Knew It →
What does the number $16$ represent in tens and ones?
What does the number $16$ represent in tens and ones?
Tap to reveal answer
$16$ is $1$ ten and $6$ ones. The $1$ in tens place represents a full group of $10$.
$16$ is $1$ ten and $6$ ones. The $1$ in tens place represents a full group of $10$.
← Didn't Know|Knew It →
What does the number $15$ represent in tens and ones?
What does the number $15$ represent in tens and ones?
Tap to reveal answer
$15$ is $1$ ten and $5$ ones. Teen numbers are built from $10$ plus more ones.
$15$ is $1$ ten and $5$ ones. Teen numbers are built from $10$ plus more ones.
← Didn't Know|Knew It →
What does the number $14$ represent in tens and ones?
What does the number $14$ represent in tens and ones?
Tap to reveal answer
$14$ is $1$ ten and $4$ ones. The ones digit matches the last part of the teen name.
$14$ is $1$ ten and $4$ ones. The ones digit matches the last part of the teen name.
← Didn't Know|Knew It →
What does the number $13$ represent in tens and ones?
What does the number $13$ represent in tens and ones?
Tap to reveal answer
$13$ is $1$ ten and $3$ ones. Teen numbers combine one ten with single-digit ones.
$13$ is $1$ ten and $3$ ones. Teen numbers combine one ten with single-digit ones.
← Didn't Know|Knew It →
What number is shown by $1$ ten and $4$ ones?
What number is shown by $1$ ten and $4$ ones?
Tap to reveal answer
$14$. Calculate $10 + 4$ to find the total value.
$14$. Calculate $10 + 4$ to find the total value.
← Didn't Know|Knew It →
What number is shown by $1$ ten and $3$ ones?
What number is shown by $1$ ten and $3$ ones?
Tap to reveal answer
$13$. One ten equals $10$, plus $3$ more makes $13$.
$13$. One ten equals $10$, plus $3$ more makes $13$.
← Didn't Know|Knew It →
What number is shown by $1$ ten and $2$ ones?
What number is shown by $1$ ten and $2$ ones?
Tap to reveal answer
$12$. Add the ten value ($10$) to the ones value ($2$).
$12$. Add the ten value ($10$) to the ones value ($2$).
← Didn't Know|Knew It →
What number is shown by $1$ ten and $6$ ones?
What number is shown by $1$ ten and $6$ ones?
Tap to reveal answer
$16$. Tens place shows groups of $10$; ones show singles.
$16$. Tens place shows groups of $10$; ones show singles.
← Didn't Know|Knew It →
What number is shown by $1$ ten and $1$ one?
What number is shown by $1$ ten and $1$ one?
Tap to reveal answer
$11$. Combine the value of tens ($10$) with ones ($1$).
$11$. Combine the value of tens ($10$) with ones ($1$).
← Didn't Know|Knew It →
What number is shown by $1$ ten and $5$ ones?
What number is shown by $1$ ten and $5$ ones?
Tap to reveal answer
$15$. The ten contributes $10$ and the ones contribute $5$.
$15$. The ten contributes $10$ and the ones contribute $5$.
← Didn't Know|Knew It →
What does the number $19$ represent in tens and ones?
What does the number $19$ represent in tens and ones?
Tap to reveal answer
$19$ is $1$ ten and $9$ ones. The largest teen number has the most ones possible.
$19$ is $1$ ten and $9$ ones. The largest teen number has the most ones possible.
← Didn't Know|Knew It →