STAAR Grade 8 Data Analysis, Personal Financial Literacy, and Probability Practice

What the test measures

Data Analysis, Personal Financial Literacy, and Probability skills

represent and analyze bivariate data
describe patterns of association
use probability concepts in investigations
solve problems involving personal financial literacy
TEKS mathematical process standards applied to grade 8 content

Standards basis

Texas Essential Knowledge and Skills (TEKS) for Mathematics — Texas

How the STAAR reports it

STAAR math is a Texas state assessment built on the Texas Essential Knowledge and Skills (TEKS), not a Common Core framework. Texas publishes explicit STAAR reporting categories by grade/course, with item reporting aligned to TEKS content strands and student expectations.

Blueprint & weighting

TEA’s publicly visible STAAR Mathematics Resources page does not publish item weights in the page content reviewed here. The category structure is explicit, but no percentage blueprint was visible in the sourced materials.

Official sources

Texas Education Agency – STAAR Mathematics Resources
Texas Education Agency – STAAR Interim Assessments
Texas Education Agency – Texas Administrative Code, Title 19, Part 2

Practice by skill

Topics mapped to this domain

Try it now

8 free questions · 0/0 correct

Practice playeasy

A $\text{\char36}20$ desk chair is on sale for $30\%$ off. What is the sale price?

Discount: $\dfrac{30}{100} \times \text{\char36}20 = \text{\char36}6\textsf{.}$ Sale price: $\text{\char36}20 - \text{\char36}6 = \text{\char36}14\textsf{.}$

Practice playeasy

Sales tax is $10\%$ . What is the tax on a $\text{\char36}80$ purchase?

Tax: $0.1 \times \text{\char36}80 = \text{\char36}8.0$ .

Practice playmedium

The price of a laptop decreased from $\text{\char36}800$ to $\text{\char36}680$ . What is the percent decrease?

Decrease $= 800 - 680 = 120$ . Percent decrease $= \dfrac{120}{800} = 0.15 = 15\%$ .

Practice playeasy

Sales tax is $6\%\textsf{.}$ What is the tax on a $\text{\char36}50$ backpack?

Tax: $\dfrac{6}{100} \times \text{\char36}50 = \text{\char36}3\textsf{.}$

Practice playeasy

A restaurant bill is $\text{\char36}20\textsf{.}$ With a $20\%$ tip added, what is the total?

Tip: $\dfrac{20}{100} \times \text{\char36}20 = \text{\char36}4\textsf{.}$ Total: $\text{\char36}20 + \text{\char36}4 = \text{\char36}24\textsf{.}$

Practice playeasy

Find the simple interest on $\text{\char36}300$ at $4\%$ per year for $1$ year.

$I = 300 \times 0.04 \times 1 = \$12$ .

Practice playmedium

Two store locations report inventory and the percent sold. How many more items were sold at the South store than at the North store?
$\begin{array}{l|c|c} \text{Store} & \text{Inventory} & \text{Percent sold} \\ \hline \text{North} & 200 & 25\% \\ \text{South} & 160 & 50\% \end{array}$