수와 연산 전체 문제

Find the Least Common Multiple of 18 and 24.

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

In the following exercises, evaluate.

$-|x|$ when $x=-2$

In the following exercises, evaluate.

$11-a$ when $a=-3$

Translate to an algebraic expression and simplify: twenty less than negative 7.

Monique has a balance of $-\char36 18$ in her checking account. She deposits $152 to the account. What is the new balance?

In the following exercises, evaluate.

Round 677.1348 to the nearest hundredth.

In the following exercises, evaluate.

Convert $\frac{4}{5}$ to a decimal.

In the following exercises, evaluate.

Convert 1.85 to a percent.

In the following exercises, evaluate.

Locate $\frac{2}{3},-1.5,\text{and}\,\frac{9}{4}$ on a number line.

In the following exercises, simplify each expression.

$4+10(3+9)-{5}^{2}$

In the following exercises, simplify each expression.

$-85+42$

In the following exercises, simplify each expression.

$-19-25$

In the following exercises, simplify each expression.

${(-2)}^{4}$

In the following exercises, simplify each expression.

$-5(-9)\div 15$

In the following exercises, simplify each expression.

$\frac{3}{8}\cdot \frac{11}{12}$

In the following exercises, simplify each expression.

$\frac{4}{5}\div \frac{9}{20}$

In the following exercises, simplify each expression.

$\frac{12+3\cdot 5}{15-6}$

In the following exercises, simplify each expression.

$\frac{m}{7}+\frac{10}{7}$

In the following exercises, simplify each expression.

$\frac{7}{12}-\,\frac{3}{8}$