수와 연산 전체 문제

Find the prime factorization of $756.$

Combine like terms: $5n+8+2n-1$

Evaluate when $x=-2$ and $y=3:$ $\frac{|3x-4y|}{6}$

Translate to an algebraic expression and simplify:

ⓐ eleven less than negative eight

ⓑ the difference of $-8$ and $-3$, increased by 5

Dushko has nickels and pennies in his pocket. The number of pennies is seven less than four times the number of nickels. Let $n$ represent the number of nickels. Write an expression for the number of pennies.

Round $28.1458$ to the nearest

ⓐ hundredth ⓑ thousandth

Convert

ⓐ $\frac{5}{11}$ to a decimal ⓑ $1.15$ to a percent

Locate $\frac{3}{5},2.8,\text{and}-\frac{5}{2}$ on a number line.

In the following exercises, simplify each expression.

$8+3[6-3(5-2)]-{4}^{2}$

In the following exercises, simplify each expression.

$-(4-9)-(9-5)$

In the following exercises, simplify each expression.

$56\div (-8)+(-27)\div (-3)$

In the following exercises, simplify each expression.

$16-2|3(1-4)-(8-5)|$

In the following exercises, simplify each expression.

$-5+2{(-3)}^{2}-9$

In the following exercises, simplify each expression.

$\frac{180}{204}$

In the following exercises, simplify each expression.

$-\frac{7}{18}+\frac{5}{12}$

In the following exercises, simplify each expression.

$\frac{4}{5}\div \left(-\frac{12}{25}\right)$

In the following exercises, simplify each expression.

$\frac{9-3\cdot 9}{15-9}$

In the following exercises, simplify each expression.

$\frac{4(-3+2(3-6))}{3(11-3(2+3))}$

In the following exercises, simplify each expression.

$\frac{5}{13}\cdot 47\cdot \frac{13}{5}$

In the following exercises, simplify each expression.

$\frac{-\frac{5}{9}}{\frac{10}{21}}$