STAR Math Practice — Questions and Answers
Question 1: What is 348 + 275?
- 513
- 613
- 623 (Correct answer)
- 523
Correct answer: 623
348 + 275 = 623.
Start with the ones place: 8 + 5 = 13, so write 3 and carry 1. Tens: 4 + 7 + 1 = 12, write 2 and carry 1. Hundreds: 3 + 2 + 1 = 6. The sum is 623.
Question 2: Which fraction is equivalent to 3/4?
- 6/8 (Correct answer)
- 4/6
- 3/8
- 9/16
Correct answer: 6/8
Multiplying both the numerator and denominator of 3/4 by 2 gives 6/8.
Equivalent fractions name the same amount. If you multiply the numerator and denominator of 3/4 by 2, you get 6/8, which is the same value. 4/6 simplifies to 2/3, 3/8 is half of 3/4, and 9/16 does not simplify to 3/4.
Question 3: A rectangle has a length of 9 cm and a width of 4 cm. What is its area?
- 13 square cm
- 26 square cm
- 36 square cm (Correct answer)
- 18 square cm
Correct answer: 36 square cm
Area of a rectangle = length × width = 9 × 4 = 36 square cm.
The area of a rectangle is found by multiplying its length and width. Here 9 cm × 4 cm = 36 square centimeters. Choice B (26 cm) is the perimeter, and choice A (13) is just the two dimensions added together.
Question 4: Which number is greater than 4.35 but less than 4.4?
- 4.3
- 4.45
- 4.5
- 4.38 (Correct answer)
Correct answer: 4.38
4.38 falls between 4.35 and 4.40.
To compare decimals, line up the place values. Write 4.4 as 4.40. Then look for a number between 4.35 and 4.40. Only 4.38 fits: 4.3 is less than 4.35, and 4.45 and 4.5 are both greater than 4.40.
Question 5: Sam has 48 stickers. He wants to share them equally among 6 friends. How many stickers will each friend get?
- 6
- 8 (Correct answer)
- 7
- 9
Correct answer: 8
48 ÷ 6 = 8 stickers per friend.
Sharing equally is a division situation. Divide the total number of stickers, 48, by the number of friends, 6. Since 6 × 8 = 48, each friend receives 8 stickers with none left over.
Question 6: Look at the pattern: 5, 11, 17, 23, ... What is the next number?
- 27
- 31
- 28
- 29 (Correct answer)
Correct answer: 29
Each number increases by 6, so 23 + 6 = 29.
Look at the difference between consecutive terms: 11 − 5 = 6, 17 − 11 = 6, and 23 − 17 = 6. The rule is to add 6 each time. Applying the rule to 23 gives 29.
