Home Questions Addition Addition Questions & Answers For 8th Grade Students
Addition Questions & Answers For 8th Grade Students Addition questions and answers suitable for 8th Grade students. The questions are Common Core aligned and follow the framework as set out. Available to see visually online. To utilise the PDF version please click the ‘Download PDF’ option.
Completely free to use and download. For more comprehensive end of 8th Grade question booklets please see our end of year test booklets.
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Simplify the expression (3x + 2y) + (4x - 5y)?
a) 7x – 3y
Correct Answers : a)
Find the sum: √144 + √225 ?
Correct Answers : d)
Calculate (2^3 + √576) + 7/2?
a) 19.5 35.5 28.5 42.5
Correct Answers : b)
Find the sum: ∛1728 + ∛216?
Correct Answers : d)
Find the sum of the expressions: (2a^2 + 3ab) + (a^2 - 2ab)?
a) 2a^ 2 + ab 3a^ 2 + ab 3a^ 2 – ab a^ 2 – ab
Correct Answers : b)
Jane has a piece of rope that measures √64 meters, and John has a piece of rope that measures √121 meters. If they combine their ropes, what is the total length of the rope they have?
a) 15 meters 11 meters 19 meters 10 meters
Correct Answers : c)
The population of City A is 750,000, and the population of City B is 420,000. What is the total population of both cities in scientific notation?
a) 1,170,000 1.17 x 10^ 6 1.17 x 10^ 7 117 x 10^ 4
Correct Answers : b)
In a scientific experiment, you have two measurements: 3.2 x 105 and 4.5 x 103. Add these measurements together and provide the answer in standard notation.
a) 324,500 3,245,000 3,245 32,450
Correct Answers : a)
Alex and Emma are racing their cars. Alex's car travels at a speed of 60 miles per hour, while Emma's car travels at a speed of 45 miles per hour. After 2 hours, calculate the total distance covered by each car, and find the sum of the distances covered by the two cars.
a) Alex’s car covers 60 miles, Emma’s car covers 45 miles, and the sum of the distances is 105 miles. Alex’s car covers 30 miles, Emma’s car covers 22.5 miles, and the sum of the distances is 52.5 miles Alex’s car covers 90 miles, Emma’s car covers 60 miles, and the sum of the distances is 150 miles. Alex’s car covers 120 miles, Emma’s car covers 90 miles, and the sum of the distances is 210 miles.
Correct Answers : d)
Sarah is solving the equation x2 = 16. She wants to find the sum of the two possible solutions for x. Calculate the two solutions and then find their sum.
a) The two solutions for x are 8 and -8. Their sum is 16. The two solutions for x are 2 and -2. Their sum is 0. The two solutions for x are 4 and -4. Their sum is 0. The two solutions for x are 4 and -4. Their sum is 8.
Correct Answers : c)