High School Placement Test (HSPT) Practice Test 2025 - Free HSPT Practice Questions and Study Guide.

To find the difference between 7² and 11², we first calculate each square:

- 7² equals 49 (because 7 multiplied by itself gives 49).

- 11² equals 121 (because 11 multiplied by itself gives 121).

Next, we determine the difference between these two values. We subtract the smaller square from the larger square:

121 - 49 = 72.

The correct answer is 72 because the operation followed the mathematical principles of squaring a number and then performing a subtraction operation.

The other choices do not reflect the correct difference between 7² and 11², as they result from other calculations or misunderstandings of the values involved. The fundamental calculation demonstrates that the difference specifically results in 72, which aligns correctly with our understanding of squaring numbers and subtraction.