Computing in scientific notation asks 8th graders to add, subtract, multiply, and divide values like 2.31 × 10^15 and 9.1 × 10^13 and report the result in proper form. Addition and subtraction require matching the exponents first, while multiplication and division use the exponent rules directly.
How the FAST tests this benchmark
This benchmark leans on the equation editor more than almost any other in 8th grade, since students type an exact answer in scientific notation. Two traps: leaving a result like 12.4 × 10^6 unnormalized, and losing the exponent match on a sum.
These come straight from Algebro's 8th grade pre-algebra question bank, easiest first. Answer one, check it, then move to the next.
Master MA.8.NSO.1.5 with personalized practice
These 6 questions are the free showcase. Algebro runs 37,000+ total questions, with FAST-style practice for every one of the 114 grade 6 to 8 benchmarks. Take the diagnostic, get a study plan that targets your gaps, and practice with an AI tutor that explains every step.
Start the Free Trial