Variables in Context - ISEE Lower Level: Quantitative Reasoning
Card 1 of 25
What expression represents the area of a rectangle with length $L$ and width $W$?
What expression represents the area of a rectangle with length $L$ and width $W$?
Tap to reveal answer
$LW$. Multiplying length by width calculates the area enclosed by the rectangle.
$LW$. Multiplying length by width calculates the area enclosed by the rectangle.
← Didn't Know|Knew It →
What expression represents “$5$ fewer than triple a number $t$”?
What expression represents “$5$ fewer than triple a number $t$”?
Tap to reveal answer
$3t - 5$. Multiplying t by 3 and subtracting 5 expresses a value 5 less than three times t.
$3t - 5$. Multiplying t by 3 and subtracting 5 expresses a value 5 less than three times t.
← Didn't Know|Knew It →
What expression represents “triple the number of seats $s$, then add $5$”?
What expression represents “triple the number of seats $s$, then add $5$”?
Tap to reveal answer
$3s + 5$. Multiplying s by 3 and adding 5 combines tripling the seats with an additional 5.
$3s + 5$. Multiplying s by 3 and adding 5 combines tripling the seats with an additional 5.
← Didn't Know|Knew It →
What expression represents the perimeter of a rectangle with length $L$ and width $W$?
What expression represents the perimeter of a rectangle with length $L$ and width $W$?
Tap to reveal answer
$2L + 2W$. Adding twice the length and twice the width gives the total perimeter of the rectangle.
$2L + 2W$. Adding twice the length and twice the width gives the total perimeter of the rectangle.
← Didn't Know|Knew It →
What expression represents the total cost for $n$ items at $\$4$ each plus a $$3$ fee?
What expression represents the total cost for $n$ items at $\$4$ each plus a $$3$ fee?
Tap to reveal answer
$4n + 3$. Multiplying n by 4 and adding 3 accounts for the cost per item plus the fixed fee.
$4n + 3$. Multiplying n by 4 and adding 3 accounts for the cost per item plus the fixed fee.
← Didn't Know|Knew It →
What expression represents the total cost for $n$ items at $\$4$ each after a $$3$ discount?
What expression represents the total cost for $n$ items at $\$4$ each after a $$3$ discount?
Tap to reveal answer
$4n - 3$. Multiplying n by 4 and subtracting 3 reflects the item costs reduced by the discount.
$4n - 3$. Multiplying n by 4 and subtracting 3 reflects the item costs reduced by the discount.
← Didn't Know|Knew It →
What expression represents your distance after traveling $t$ hours at $60$ miles per hour?
What expression represents your distance after traveling $t$ hours at $60$ miles per hour?
Tap to reveal answer
$60t$. Multiplying time t by the constant speed of 60 yields the total distance traveled.
$60t$. Multiplying time t by the constant speed of 60 yields the total distance traveled.
← Didn't Know|Knew It →
What expression represents the average of two numbers $a$ and $b$?
What expression represents the average of two numbers $a$ and $b$?
Tap to reveal answer
$\frac{a + b}{2}$. Summing a and b then dividing by 2 computes the mean value between them.
$\frac{a + b}{2}$. Summing a and b then dividing by 2 computes the mean value between them.
← Didn't Know|Knew It →
What expression represents the number of minutes in $h$ hours?
What expression represents the number of minutes in $h$ hours?
Tap to reveal answer
$60h$. Multiplying hours h by 60 converts the time to minutes using the fixed rate per hour.
$60h$. Multiplying hours h by 60 converts the time to minutes using the fixed rate per hour.
← Didn't Know|Knew It →
What expression represents the number of cents in $d$ dollars?
What expression represents the number of cents in $d$ dollars?
Tap to reveal answer
$100d$. Multiplying dollars d by 100 converts the amount to cents using the standard conversion rate.
$100d$. Multiplying dollars d by 100 converts the amount to cents using the standard conversion rate.
← Didn't Know|Knew It →
What equation represents: “A number $x$ increased by $9$ equals $20$”?
What equation represents: “A number $x$ increased by $9$ equals $20$”?
Tap to reveal answer
$x + 9 = 20$. Setting x plus 9 equal to 20 models the situation where adding 9 to x results in 20.
$x + 9 = 20$. Setting x plus 9 equal to 20 models the situation where adding 9 to x results in 20.
← Didn't Know|Knew It →
What equation represents: “Three times a number $y$ minus $4$ is $11$”?
What equation represents: “Three times a number $y$ minus $4$ is $11$”?
Tap to reveal answer
$3y - 4 = 11$. Setting 3y minus 4 equal to 11 models three times y reduced by 4 equaling 11.
$3y - 4 = 11$. Setting 3y minus 4 equal to 11 models three times y reduced by 4 equaling 11.
← Didn't Know|Knew It →
What expression represents “$m$ divided by $4$”?
What expression represents “$m$ divided by $4$”?
Tap to reveal answer
$\frac{m}{4}$. Dividing m by 4 represents splitting m into four equal parts.
$\frac{m}{4}$. Dividing m by 4 represents splitting m into four equal parts.
← Didn't Know|Knew It →
What does the expression $x + 5$ represent if $x$ is a number of stickers and $5$ more are added?
What does the expression $x + 5$ represent if $x$ is a number of stickers and $5$ more are added?
Tap to reveal answer
The total number of stickers after adding $5$. Adding 5 to the variable x, which represents the initial number of stickers, gives the total after the addition.
The total number of stickers after adding $5$. Adding 5 to the variable x, which represents the initial number of stickers, gives the total after the addition.
← Didn't Know|Knew It →
What expression represents “$7$ less than a number $n$”?
What expression represents “$7$ less than a number $n$”?
Tap to reveal answer
$n - 7$. Subtracting 7 from n expresses a value that is 7 less than the original number.
$n - 7$. Subtracting 7 from n expresses a value that is 7 less than the original number.
← Didn't Know|Knew It →
What expression represents “$7$ less than twice a number $n$”?
What expression represents “$7$ less than twice a number $n$”?
Tap to reveal answer
$2n - 7$. Multiplying n by 2 and then subtracting 7 captures twice the number reduced by 7.
$2n - 7$. Multiplying n by 2 and then subtracting 7 captures twice the number reduced by 7.
← Didn't Know|Knew It →
What expression represents “twice the sum of a number $x$ and $3$”?
What expression represents “twice the sum of a number $x$ and $3$”?
Tap to reveal answer
$2(x + 3)$. Multiplying the sum of x and 3 by 2 represents twice that combined quantity.
$2(x + 3)$. Multiplying the sum of x and 3 by 2 represents twice that combined quantity.
← Didn't Know|Knew It →
What expression represents “the sum of twice a number $x$ and $3$”?
What expression represents “the sum of twice a number $x$ and $3$”?
Tap to reveal answer
$2x + 3$. Adding 3 to twice x represents the sum of those terms.
$2x + 3$. Adding 3 to twice x represents the sum of those terms.
← Didn't Know|Knew It →
What expression represents “$3$ more than half of a number $y$”?
What expression represents “$3$ more than half of a number $y$”?
Tap to reveal answer
$\frac{y}{2} + 3$. Dividing y by 2 and adding 3 expresses a value 3 greater than half of y.
$\frac{y}{2} + 3$. Dividing y by 2 and adding 3 expresses a value 3 greater than half of y.
← Didn't Know|Knew It →
What expression represents “half of the quantity $y$ plus $3$”?
What expression represents “half of the quantity $y$ plus $3$”?
Tap to reveal answer
$\frac{y + 3}{2}$. Dividing the sum of y and 3 by 2 represents half of that total quantity.
$\frac{y + 3}{2}$. Dividing the sum of y and 3 by 2 represents half of that total quantity.
← Didn't Know|Knew It →
What expression represents “the product of $9$ and a number $k$ decreased by $4$”?
What expression represents “the product of $9$ and a number $k$ decreased by $4$”?
Tap to reveal answer
$9k - 4$. Multiplying k by 9 and subtracting 4 decreases the product by 4.
$9k - 4$. Multiplying k by 9 and subtracting 4 decreases the product by 4.
← Didn't Know|Knew It →
What expression represents “$4$ times as many as $m$”?
What expression represents “$4$ times as many as $m$”?
Tap to reveal answer
$4m$. Multiplying m by 4 expresses a quantity four times larger than m.
$4m$. Multiplying m by 4 expresses a quantity four times larger than m.
← Didn't Know|Knew It →
What expression represents “$4$ divided by $m$”?
What expression represents “$4$ divided by $m$”?
Tap to reveal answer
$\frac{4}{m}$. Dividing 4 by m represents the quotient when 4 is divided by the variable m.
$\frac{4}{m}$. Dividing 4 by m represents the quotient when 4 is divided by the variable m.
← Didn't Know|Knew It →
What expression represents “the difference between a number $p$ and $12$”?
What expression represents “the difference between a number $p$ and $12$”?
Tap to reveal answer
$p - 12$. Subtracting 12 from p calculates the difference by removing 12 from the larger value p.
$p - 12$. Subtracting 12 from p calculates the difference by removing 12 from the larger value p.
← Didn't Know|Knew It →
What expression represents “the difference between $12$ and a number $p$”?
What expression represents “the difference between $12$ and a number $p$”?
Tap to reveal answer
$12 - p$. Subtracting p from 12 calculates the difference by removing p from the fixed value 12.
$12 - p$. Subtracting p from 12 calculates the difference by removing p from the fixed value 12.
← Didn't Know|Knew It →