STAR Mathematics

Question 1

What is 456 + 789?

Accepted Answer

1,245

Answer

To find the sum of 456 and 789, you perform standard addition. Adding the ones column (6+9=15), you write down 5 and carry over 1. Adding the tens column (5+8+1=14), you write down 4 and carry over 1. Adding the hundreds column (4+7+1=12), you write down 12. Combining these results gives the total sum of 1,245.

Question 2

If a rectangle has a length of 8 cm and a width of 5 cm, what is its area?

Accepted Answer

40 cm²

Answer

The area of a rectangle is calculated by multiplying its length by its width. In this problem, the length is 8 cm and the width is 5 cm. Therefore, the area is 8 cm multiplied by 5 cm, which equals 40 cm². The unit for area is always expressed in square units.

Question 3

Which of the following is equivalent to 3/4  as a decimal?

Accepted Answer

0.75

Answer

To convert a fraction to a decimal, you divide the numerator by the denominator. For the fraction 3/4, you divide 3 by 4. Performing this division (3 ÷ 4) yields 0.75. This is a common fraction-to-decimal conversion often encountered in basic mathematics.

Question 4

A car travels 60 kilometers per hour. How far will it travel in 3 hours?

Accepted Answer

180 km

Answer

To calculate the total distance traveled, you multiply the speed by the time. The car travels at a speed of 60 kilometers per hour for 3 hours. Therefore, the distance is calculated as 60 km/hour multiplied by 3 hours, which equals 180 kilometers. This is a direct application of the distance = speed × time formula.

Question 5

What is the value of 7×(2+3)?

Accepted Answer

35

Answer

To solve 7×(2+3), you must follow the order of operations (PEMDAS/BODMAS). First, calculate the expression inside the parentheses: 2 + 3 equals 5. Then, multiply this result by 7: 7 × 5 equals 35. Therefore, 35 is the correct value.

(STAR) STAR Assessment Test Practice Test

(STAR) STAR Assessment Test Practice Test

STAR Mathematics