Number System

Which of the following is the correct Roman numeral for the number $89$?

What is the maximum number of times the Roman numeral symbols $I$, $X$, $C$, and $M$ can be repeated consecutively?

What is the Hindu-Arabic value of the Roman numeral $XXVI$?

Which of the following is the Roman numeral for $47$?

Calculate the result of $M - DC$ and express it as a Roman numeral.

Estimate the sum $412 + 589 + 123$ by rounding each number to the nearest hundred.

What is $44,444$ rounded to the nearest thousand?

Find the Roman numeral for the sum of the first five odd numbers squared.

Estimate the product of $1,234$ and $5,678$ by rounding each to the nearest thousand.

Which Roman numeral represents the number of minutes in a day?

What is the predecessor of the whole number $2$?

If $n$ is any whole number, then the value of $n + 0$ is:

Which whole number is exactly in the middle of $8$ and $12$?

On the number line, what is the value of $2 \times 4$?

How many units away from $0$ is the successor of the successor of $4$ on a number line?

If $a = 50$, $b = 20$, and $c = 10$, then $a - (b - c)$ is equal to:

What is the value of $x$ if $(20 + 5) + 15 = 20 + (x + 15)$?

If $a, b, c$ are whole numbers and $a \times (b - c) = 50$, what is the value of $(a \times b) - (a \times c)$?

Which of the following represents the number line operation for $3 \times 2$?

If $x$ is a whole number such that $x \div 1 = x$, and $1 \div x = 1$, then $x$ must be:

What is the $LCM$ of $8$ and $12$?

The difference between the smallest prime number and the smallest odd prime number is:

Which of the following numbers is prime?

If a number is divisible by $10$, it must also be divisible by:

What is the product of the HCF and LCM of $14$ and $21$?

The HCF of two numbers is $11$ and their LCM is $7700$. If one of the numbers is $275$, find the other.

Find the greatest 4-digit number which is exactly divisible by $15, 24,$ and $36$.

The HCF of two numbers is $1$. Such numbers are called:

A number $N$ is divisible by both $3$ and $4$. Which of the following must be true for $2N$?

Find the least number of square tiles required to pave the ceiling of a room $15$ m $17$ cm long and $9$ m $2$ cm broad.

If $a = -5$, then what is $-a$?

What is the distance of $-8$ from $0$ on the number line?

Predecessor of $-20$ is:

Subtracting a negative integer is the same as:

What is the sum of all integers that are greater than $-8$ but less than $-4$?

Find the value of $a - b + c$ if $a = -5, b = -2, c = -3$.

What is the result of adding $-100$ to the successor of $99$?

Let $p$ be the sum of the absolute values of all integers $x$ such that $-5 < x \leq 2$. Let $q$ be the absolute value of the sum of these same integers. Find the value of $q - p$.

A kite is flying at $50m$ height. The string is held $1.5m$ above the ground. If the person steps into a $2m$ deep pit, what is the vertical height of the kite from the person's feet?

Which of the following is true regarding absolute values?

Which fraction represents half of a quarter?

A pizza is cut into $8$ equal slices. If you eat $3$ slices, what fraction of the pizza is left?

What is the missing number: $\frac{2}{3} = \frac{?}{12}$?

Which of the following is a proper fraction?

Convert $12 \frac{3}{7}$ to an improper fraction.

Which of the following is an improper fraction?

If $\frac{2}{5}$ of a property is worth $40,000$, find the total value of the property.

If the sum of a number and its reciprocal is $2\frac{1}{6}$, find the number.

What should be subtracted from $10$ to get $3\frac{3}{4}$?

Divide $10\frac{4}{5}$ by the product of $1\frac{1}{2}$ and $1\frac{1}{5}$.

Calculate $1.1 \times 1.1$.

Identify the place value of $2$ in $0.342$.

What is $7$ tenths plus $3$ hundredths?

Subtract: $2.0 - 0.01$.

Evaluate: $0.012 \div 0.4$.

Simplify: $8.25 + 1.75 - 2.0$.

Write 'Twenty three and five hundredths' as a decimal.

In the number $56.789$, which digit is in the hundredths place?

A car uses $1$ liter of petrol to cover $16.4$ km. How much petrol is needed for $205$ km?

Find the value of $10 - 0.1 - 0.01 - 0.001$.