FREE 6th Grade OST Math Practice Test
TL;DR: Got a sixth grader prepping for Ohio’s State Test math? Take this free 6th grade math practice test aligned with the OST. You get 20 questions spanning the grade 6 domains your child sees on Ohio’s spring state math assessment, so the practice maps cleanly to what they will actually face on test day. Treat it like a dress rehearsal and you will know which topics still deserve a little more time.
Key takeaways:
- Aligned with Ohio Learning Standards for grade 6 math (the basis of the OST).
- 20 questions across ratios, number system, expressions/equations, geometry, statistics.
- OST is computer-based and administered in two parts during the spring testing window.
- Calculator is not allowed on grade 6 OST math (consistent with Ohio’s grade-band policy).
- Scored on Ohio’s 5-level performance scale: Limited, Basic, Proficient, Accomplished, Advanced.
1- A baker needs to pack 143 chocolate cookies and 55 vanilla cookies into boxes so that each box has the same number of cookies and only one type of cookie per box. What is the largest number of cookies that can be put in each box?
A. 5
B. 7
C. 9
D. 11
2- What is the value of \(2{,}205 \div 315\)?
A. 5
B. 6
C. 7
D. 8
3- If \(112=22+x\), what is the value of \(x\)?
A. 78
B. 90
C. 100
D. 134
4- Car A travels 221.5 km. Car B travels 1.2 times the distance of Car A. How far does Car B travel?
A. 184.6 km
B. 221.5 km
C. 242.8 km
D. 265.8 km
5- The perimeter of the trapezoid below is 38. What is its area?
A. 198 cm\(^2\)
B. 162 cm\(^2\)
C. 99 cm\(^2\)
D. 81cm\(^2\)
6- Which of the following expressions has the greatest value?
A. \( 3^1+12\)
B. \( 3^3-3^2\)
C. \( 3^4-60\)
D. \( 3^5-218\)
7- Alfred has \(x\) apples. Alvin has 40 apples, which is 15 apples less than several apples Alfred owns. If Baron has \(\frac{1}{5}\) times as many apples as Alfred has. How many apples does Baron have?
A. 5
B. 11
C. 55
D. 275
8- In the following triangle find \(α\).
A. \(100^\circ\)
B. \(90^\circ\)
C. \(60^\circ\)
D. \(30^\circ\)
9- The price of a laptop is decreased by \(15\%\) to $425. What is its original price?
A. $283
B. $430
C. $500
D. $550
10- Find the perimeter of the shape in the following figure? (all angles are right angles)
A. 21
B. 22
C. 24
D. 20
11- What are the values of mode and median in the following set of numbers?
\(1,3,3,6,6,5,4,3,1,1,2\)
A. Mode: 1, 2, Median: 2
B. Mode: 1, 3, Median: 3
C. Mode: 2, 3, Median: 2
D. Mode: 1, 3, Median: 2.5
12- Which expression equivalent to \(x × 92\)?
A. \((x×90)+2\)
B. \(x×9×2\)
C. \((x×90)+(x×2)\)
D. \((x×90)+2\)
13- The ratio of pens to pencils in a box is 3 to 5. If there are 96 pens and pencils in the box altogether, how many more pens should be put in the box to make the ratio of pens to pencils 1: 1?
A. 22
B. 23
C. 24
D. 25
14- If point A placed at \(-\frac{24}{3}\) on a number line, which of the following points has a distance equal to 5 from point A?
A. \(-13\)
B. \(-3\)
C. \(-2\)
D. A and B
15- Which of the following shows the numbers in increasing order?
A. \(\frac{3}{13}, \frac{4}{11}, \frac{5}{14}, \frac{2}{5}\)
B. \(\frac{3}{13}, \frac{5}{14}, \frac{4}{11}, \frac{2}{5}\)
C. \(\frac{3}{13}, \frac{5}{14}, \frac{2}{5}, \frac{4}{11}\)
D. \(\frac{5}{14}, \frac{3}{13}, \frac{2}{5}, \frac{4}{11}\)
16- If \(x=- 4\), which of the following equations is true?
A. \(x(3x-1)=50\)
B. \(5(11-x^2 )=-25\)
C. \(3(-2x+5)=49\)
D. \(x(-5x-19)=-3\)
17- What is the missing prime factor of number 450?
\(450=2^1×3^2×…\) _________
18- What is the perimeter of the following shape? (it’s a right triangle)
A. 14 cm
B. 18 cm
C. 24 cm
D. 32 cm
19- 65 is what percent of 50?
A. \(50 \%\)
B. \(77 \%\)
C. \(130 \%\)
D. \(140 \%\)
20- Which of the following expressions has a value of \(-23\)?
A. \(-10+(-8)+ \frac{5}{2}×(-2)\)
B. \(5×3+(-2)×18\)
C. \(-10+6×8÷(-4)\)
D. \((-3) × (-7) + 2\)
Best 6th Grade OST Math Workbook Resource for 2026
Answers:
1- D
First, we need to find the GCF (Greatest Common Factor) of 143 and 55.
\(143=11×13\)
\(55=5×11→\) GFC\( = 11\)
Therefore, we need 11 boxes.
2- C
\(2205÷315=\frac{2205}{315}=\frac{441}{63}=\frac{147}{21}= 7\)
3- B
\(112=22+x \)
Subtract 22 from both sides of the equation. Then:
\(x=112-22=90\)
4- D
Distance that car B travels \(=1.2 ×\) distance that car A travels
=\(1.2×221.5=265.8 \) km
5- D
The perimeter of the trapezoid is 38.
Therefore, the missing side (height) is \(= 38 – 8 – 10 – 11 = 9\)
Area of the trapezoid: \(A = \frac{1}{2} h (b_1 + b_2) = \frac{1}{2}1 (9) (8 + 10) = 81\)
6- D
A. \(3^1+12=3+12=15\)
B. \(3^3-3^2=27-9=18\)
C. \(3^4-60=81-60=21\)
D. \(3^5-218=243-218=25\)
7- B
Alfred has \(x\) apple which is 15 apples more than a number of apples Alvin owns. Therefore:
\(x-15=40→x=40+15=55\)
Alfred has 55 apples.
Let \(y\) be the number of apples that Baron has. Then: \(y=\frac{1}{5}×55=11\)
8- A
Complementary angles add up to 180 degrees.
\( β+150^\circ=180^\circ→β=180^\circ-150^\circ=30^\circ\)
The sum of all angles in a triangle is 180 degrees. Then:
\(α+β+50^\circ=180^\circ→α+30^\circ+50^\circ=180^\circ\)
\(→α+80^\circ=180^\circ→α=180^\circ-80^\circ=100^\circ\)
9- C
Let \(x\) be the original price.
If the price of a laptop is decreased by \(15\%\) to $425, then:
\(85 \% \space of \space x=425⇒ 0.85x=425 ⇒ x=425÷0.85=500\)
10- C
Let \(x\) and \(y\) be two sides of the shape. Then:
\(x+1=1+1+1→x=2\)
\(y+6+2=5+4→y+8=9→y=1\)
Then, the perimeter is:
\(1+5+1+4+1+2+1+6+2+1=24\)
11- B
First, put the numbers in order from least to greatest: \(1, 1, 1, 2, 3, 3, 3, 4, 5, 6, 6\)
The Mode of the set of numbers is: 1 and 3 (the most frequent numbers)
The median is: 3 (the number in the middle)
12- C
\(x×92=x×(90+2)=(x×90)+(x×2)\)
13- C
The ratio of pens to pencils is \(3: 5\). Therefore there are 3 pens out of all 8 pens and pencils. To find the answer, first dived 96 by 8 then multiply the result by 3.
\(96÷8=12→12×3=36\)
There are 36 pens and 60 pencils \((96-36)\). Therefore, 24 more pens should be put in the box to make the ratio \(1: 1\)
14- D
If the value of point A is greater than the value of point B, then the distance of two points on the number line is: the value of A- the value of B
A. \(-\frac{24}{3}-(-13)=-8+13=5=5\)
B. \(-3-(-\frac{24}{3})=-3+8=5=5\)
C. \(-2-(-\frac{24}{3})=-2+8=6≠5\)
15- B
\(\frac{3}{13}≅0.23, \frac{5}{14}≅0.357, \frac{4}{11}≅0.36, \frac{2}{5}=0.4\)
16- B
Plugin the value of \(x\) in the equations. \(x = -4\), then:
A.\(x(3x-1)=50→-4(3(-4)-1)=-4(-12-1)=-4(-13)=52≠50\)
B. \(5(11-x^2 )=-25→5(11-(-4)^2 )= 5(11-16)=5(-5)=-25\)
C. \(3(-2x+5)=49→3(-2(-4)+5)=3(8+5)=39≠49\)
D. \(x(-5x-19)=-3→-4(-5(-4)-19=-4(20-19)=-4≠-3\)
17- 5
Let \(x\) be the missing prime factor of 450.
\(450= 2 × 3 × 3 × x ⇒ x =\frac{450}{18} ⇒ x = 25=5×5\)
18- C
Use the Pythagorean theorem to find the hypotenuse of the triangle.
\(a^2+b^2=c^2→6^2+8^2=c^2→36+64=c^2→100=c^2→c=10\)
The perimeter of the triangle is: \(6+8+10=24\)
19- C
Use the percent formula:
\(Part = \frac{percent}{100} × whole\)
\(65= \frac{percent}{100} × 50⇒ 65 = \frac{percent ×50}{100}⇒ 65=\frac{percent ×5}{10}\)
multiply both sides by 10.
\(650 =percent ×5, \space divide \space both \space sides \space by \space 5.\)
130 = percent
The answer is \(130\%\)
20- A
Let’s check the options provided.
A. \(-10+(-8)+ (\frac{5}{2})×(-2)=-10+(-8)+(-5)=-10-13=-23\)
B. \(5×3+(-2)×18=15+(-38)=-21\)
C. \(-10+6×8÷(-4)=-10+48÷(-4)=-10-12=-22\)
D. \((-3)× (-7)+ 2=21+2=23\)
Looking for the best resource to help you succeed on the Grade 6 OST Math test?
The Most Comprehensive Review for 6th-Grade Students
Recommended EffortlessMath Books
For a workbook your child can use alongside this practice test, the 6th Grade OST Math for Beginners walks through every topic on the test with worked examples. For full Ohio state-test prep with multiple practice tests, see the 6th Grade OST Math Test Prep Bundle.
Frequently Asked Questions
What is the Ohio State Test (OST)?
The Ohio State Test is Ohio’s annual K-12 state assessment, given in math, English language arts, science, and social studies in various grades. The grade 6 math OST is built on Ohio’s Learning Standards for math, which closely match Common Core grade 6 standards.
What’s on the grade 6 OST math?
Five domains: Ratios and Proportional Relationships, The Number System, Expressions and Equations, Geometry, and Statistics and Probability. Specific skills include unit rates, dividing fractions, working with negative numbers, writing one-variable equations, area of triangles and quadrilaterals, and basic statistical measures.
Is a calculator allowed on the grade 6 OST math?
No. Ohio does not permit calculators on grade 6 math OST. Students are expected to perform arithmetic with fractions, decimals, and integers by hand. Calculator use begins at grade 7 in Ohio’s testing policy.
How long is the grade 6 OST math?
About 2.5 hours total, split into two parts (Part 1 and Part 2) administered on different days. Each part takes about 75 minutes. Students with IEPs or 504 plans may receive extended time as documented.
When is the OST given?
The grade 6 OST math is administered during Ohio’s spring testing window, typically late March through early May. Exact dates are set by your child’s district. Teachers will share the schedule a few weeks in advance.
How is the OST scored?
Ohio uses 5 performance levels: Limited, Basic, Proficient, Accomplished, and Advanced. The state expects students to score at the Proficient level or higher. Score reports are mailed home in late summer or early fall.
What’s the hardest topic on the grade 6 OST math?
Dividing fractions by fractions and writing one-variable equations from word problems are the two biggest stumbling blocks. Working with negative numbers on the coordinate plane is also new in grade 6 and often needs extra practice.
How long should we study for the grade 6 OST?
For most grade 6 students, 4 to 6 weeks of consistent practice at 15 to 25 minutes per day works well. Start with a diagnostic, drill the weakest domain, then build up to timed full-length practice in the final two weeks.
Does the OST include performance tasks?
The grade 6 OST math is mostly selected-response and short-answer items. It doesn’t include the multi-day performance tasks that SBAC tests have. Items include multiple choice, multi-select, gridded response, and short constructed response.
Where can I find more grade 6 OST math practice?
EffortlessMath has the 6th Grade OST Math for Beginners workbook covering every grade-6 standard and the 6th Grade OST Math Test Prep Bundle with multiple full-length practice tests and answer explanations.
Related EffortlessMath Lessons
If a topic on this page feels rusty, these short lessons go deeper:
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