10 Most Common 4th Grade OST Math Questions
A. \(28,097; 28,207; 29,700; 27,980\)
B. \(29,700; 28,207; 28,097; 27,980\)
C. \(27,980; 28,097; 28,207; 29,700\)
D. \(27,980; 28,207; 28,097; 29,700\)
4- Which number correctly completes the subtraction sentence
\(5.0 – 3.25 =\) _______?
A. \(1.25\)
B. \(1.75\)
C. \(2.25\)
D. \(2.75\)
5- For a concert, there are children’s tickets and adult tickets for sale. Of the total available tickets, \(\frac{26}{100}\) have been sold as adult tickets and \(\frac{4}{10}\) as children’s tickets. The rest of the tickets have not been sold.
What fraction of the total number of tickets for the concert have been sold?
A. \(\frac{30}{100}\)
B. \(\frac{66}{100}\)
C. \(\frac{30}{10}\)
D. \(\frac{66}{110}\)
6- Mia has a group of shapes. Each shape in her group has at least one set of parallel sides. Each shape also has at least one set of perpendicular sides. Which group could be Mia’s group of shapes?
A.
B.
C.
D.
7- There are \(86\) students from Riddle Elementary school at the library on Monday. The other \(32\) students in the school are practicing in the classroom. Which number sentence shows the total number of students in Riddle Elementary School?
A. \(86 + 32\)
B. \(86 -32\)
C. \(86 × 32\)
D. \(86 ÷ 32\)
8- Carol is inviting \(5\) friends to a party. She has \(40\) cookies. How many cookies will each friend get? _________
9- Moe packs \(55\) boxes with flashcards. Each box holds \(100\) flashcards. How many flashcards Moe can pack into these boxes?
A. \(5505\)
B. \(550\)
C. \(275\)
D. \(5500\)
10- A stack of \(7\) pennies has a height of \(1\) centimeter. Nick has a stack of pennies with a height of \(4\) centimeters. Which equation can be used to find the number of pennies, \(n\), in Nick’s stack of pennies?
A.\(n = 7 + 4\)
B. \(n = 7- 4\)
C. \(n = 7×4\)
D. \(n = 7 ÷ 4\)
Best 4th Grade OST Math Exercise Resource for 2026
Answers:
1- C
The model is divided into \(100\) equal parts. We shade \(92\) parts that it’s equal to \(\frac{92}{100}\) or \(0.92\).
2- D
\(80 × 34 =2720\)
3- C
\(27,980 ≤ 28,097 ≤ 28,207 ≤ 29,700\)
4- B
\(5.0 – 3.25 =1.75\)
5- B
Add adult tickets and children’s tickets that have been sold.
\(\frac{26}{100}+\frac{4}{10}=\frac{26 + 40}{100}=\frac{66}{100}\)
6- D
The trapezoid has one pair of parallel sides.
The second and third shape has perpendicular sides.
7- A
Add the number of all students to know the whole number of students.
\(86 + 32 =118\)
8- 8
\(40÷5 = 8\)
9- D
If \(1\) box has \(100\) flashcards so \(55\) boxes have \((55×100)\) \(5,500\) flashcards.
10- C
At a height of \(1\) centimeter, we have \(7\) pennies, so in height of \(4\) centimeters, we have \(7 × 4\) pennies.
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