Washington SBA
“Education is not the filling of a pail, but the lighting of a fire.”W. B. Yeats
United StatesWashington
Washington SBA and WCAS practice
Grades 3–8
14 practice papers for Washington’s SBA and WCAS, in English Language Arts, Mathematics and Science.
14 practice papersSBA · Grades 3–814practice papers
2Washington tests
3subjects
Grades 3–8
Washington
Washington tests and practice papers
Every practice paper we have for Washington, by test and grade.
Washington WCAS
What families say
Students preparing for Washington tests
★★★★★
“The AP Calculus prep materials really helped my son build confidence for the exam!”
★★★★☆
“I feel so much better prepared for the state test, though I wish there were a few more practice questions.”
★★★★★
“My daughter's math improved immensely. The step-by-step guides were key for us.”
How practice works
Practice that feels like the Washington SBA
Every paper your child finishes is one more they have already done before test day.
Papers for each grade and subject
Written for Washington SBA and WCAS, in the grades and subjects each test covers.
Timed or untimed
Sit a paper timed like test day, or untimed while your child is still learning.
Every answer explained
Your child sees the right answer and why. Missed questions come back as their own practice set.
The portal
Three parts. One loop.
Diagnose, learn, prove. Each part feeds the next, so nothing is guesswork.
See how prepGro works
Free diagnostic test
A short adaptive test that names the exact skills holding back the Washington SBA and WCAS score.
Length~20 min
ReportSame day
CostFree
Lessons, plus tutoring as an add-on
A weekly plan of short lessons mapped to the diagnostic. Live 1:1 tutoring is an optional add-on whenever you want one.
LessonsSkill-mapped
Live 1:1 tutoringWaitlist
PlanWeekly
Unlimited practice tests
Every Washington SBA and WCAS paper as often as your child likes, with explanations — and every missed question comes back as its own scored set until it's fixed.
AttemptsUnlimited
ReviewEvery answer
TrendBy skill
Drop by drop, the pot is filled.
Confidence grows one paper at a time
Start with one Washington SBA paper today, and let your child walk into test day having done it before.
FAQ
Questions parents ask
Which Washington tests do you cover?
SBA (grades 3–8) and WCAS (grades 5–8).
What does the Washington SBA cover?
The SBA covers English Language Arts and Mathematics in grades 3–8. prepGro has 12 papers for it, each written for the same grade and subject.
What does the Washington WCAS cover?
The WCAS covers Science in grades 5–8. prepGro has 2 papers for it, each written for the same grade and subject.
Are these the official tests?
No. They are practice papers written for the same grades and subjects. PrepGro is independent and is not affiliated with the education authorities that run these exams.
Which grades and subjects?
Grades 3–8: English Language Arts, Mathematics and Science.
What does unlimited practice include?
Unlimited practice tests across every subject at the grade level you choose, timed or untimed, with answer explanations, review and skill-level progress tracking.
Can my child have a live tutor?
Yes, as an optional add-on. Practice papers work on their own. When you want more help, add live 1:1 classes with a tutor who can see your child’s practice results and works on the skills they show.
Will practice raise my child’s score?
Practice helps your child prepare, and every paper shows what to work on next. No one can promise a test result, and prepGro does not.