10 Most Common 3rd Grade Common Core Math Questions

B. 1:45 PM

C. 1:15 PM

D. 12:15 PM

6- Olivia has 84 pastilles. She wants to put them in boxes of 4 pastilles. How many boxes does she need?

A. 20

B. 21

C. 24

D. 28

7- A football team is buying new uniforms. Each uniform costs $20. The team wants to buy 11 uniforms.
Which equation represents a way to find the total cost of the uniforms?

A. \((20 × 10) + (1 × 11) = 200 + 11\)

B. \((20 × 10) + (10 × 1) = 200 + 10\)

C. \((20 × 10) + (20 × 1) = 200 + 20\)

D. \((11 × 10) + (10 × 20) = 110 + 200\)

8- There are 92 students from Lexington Elementary School at the library on Tuesday. The other 54 students in the school are practicing in the classroom. Which number sentence shows the total number of students in Riddle Elementary School?

A. \(92 + 54\)

B.\(92 -54\)

C. \(92 × 54\)

D. \(92 ÷54\)

9- Use the picture below to answer the question.

Which fraction shows the shaded part of this square?

A. \(\frac{92}{100}\)

B. \(\frac{92}{10}\)

C. \(\frac{90}{100}\)

D. \(\frac{8}{100}\)

10- Which number correctly completes the number sentence \(90 × 25 =\)?

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A. 225

B. 900

C. 1250

D. 2250

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Answers:

2- 42
3spaghetti with meatballs cost: \($3 × $8 = $24\)
3bowls of bean soup cost: \(3 × $6 = $18\)
3spaghetti with meatballs + 3bowls of bean soup cost: \($24 + $ 18 = $42\)

3- C
1 day: 24 hours so 7 days \(= 7 × 24 = 168\) hours

4- B
Three-digit odd numbers that have a 6 in the hundreds place and a 3 in the tens place is 637. 632 and 636 are even numbers.

5- A
Subtract hours: \(14– 1 = 13\)
Subtract the minutes: \(15 – 30 = – 15\)
The minutes are less than 0, so:
• Add 60 to minutes ( \(-15 +60 =45\) minutes)
• Subtract 1 from hours \((13 – 1 =12)\)

6- B
Olivia wants to divide 84 pastilles into boxes of 4 pastilles, so \(84 ÷ 4 = 21\) is the number of boxes.

7- C
The football team should buy 11 uniforms that each cost $2,0, so they should pay\((11×$20) $220\).
Therefore, choice C is the correct answer:
\((20 × 10) + (20 × 1) = 20(10+1) =20×11=220\)

8- A
Add 92 and 54 students to know the total number of students.

9- A
the model for the fraction is divided into 100 equal parts. We shade 92 parts of these 100 parts that it’s equal to \(\frac{92}{100}\)

10- D
\(90 × 25 =2,250\)

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