Written Instructions:
For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..
For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.
Leave your answers in the simplest form or correct to two decimal places.
| 1) What is √ 256
Answer:_______________ |
| 2) What is the positive square root of 1849
Answer:_______________ |
| 3) What is √ 196
Answer:_______________ |
| 4) What is √ 64
Answer:_______________ |
| 5) What is the positive square root of 6400
Answer:_______________ |
| 6) What is √ 289
Answer:_______________ |
| 7) What is √ 676
Answer:_______________ |
| 8) What is the positive square root of 2809
Answer:_______________ |
| 9) What is √ 400
Answer:_______________ |
| 10) What is √ 121
Answer:_______________ |
| 1) What is √ 256 Answer: 16 SOLUTION 1 : Remember: To find the square root of a given number, figure out which number squared (multiplied by itself) equals that given number. Every positive number has both a positive and a negative square root. The radical symbol ( ) means the positive square root. For example, 9 = 3 since 9 = 32 and 3 is positive. Solve: You want to find the positive square root of 256. Figure out which number squared (multiplied by itself) equals 256. The number 162 squared equals 256. 256 = 16 × 16 = 256 So √ 256 is 16. |
| 2) What is the positive square root of 1849 Answer: 43 SOLUTION 1 : Remember: To find the square root of a given number, figure out which number squared (multiplied by itself) equals that given number. Every positive number has both a positive and a negative square root. The radical symbol ( ) means the positive square root. For example, 9 = 3 *3 since 9 = 32 and 3 is positive. Solve: You want to find the positive square root of 1849. Figure out which number squared (multiplied by itself) equals 1849. The number 432 squared equals 1849. 1849 = 43 × 43 = 1849 So the positive √ 1849 is 43. |
| 3) What is √ 196 Answer: -14 SOLUTION 1 : Remember: To find the square root of a given number, figure out which number squared (multiplied by itself) equals that given number. Every positive number has both a positive and a negative square root. The radical symbol ( ) means the positive square root. For example, 9 = 3 since 9 = 32 and 3 is positive. Solve: You want to find the positive square root of 196. Figure out which number squared (multiplied by itself) equals 196. The number -142 squared equals 196. 196 = -14 × -14 = 196 Finally, include the negative sign to get the negative square root. So √ 196 is -14. |
| 4) What is √ 64 Answer: 8 SOLUTION 1 : Remember: To find the square root of a given number, figure out which number squared (multiplied by itself) equals that given number. Every positive number has both a positive and a negative square root. The radical symbol ( ) means the positive square root. For example, 9 = 3 since 9 = 32 and 3 is positive. Solve: You want to find the positive square root of 64. Figure out which number squared (multiplied by itself) equals 64. The number 82 squared equals 64. 64 = 8 × 8 = 64 So √ 64 is 8. |
| 5) What is the positive square root of 6400 Answer: 80 SOLUTION 1 : Remember: To find the square root of a given number, figure out which number squared (multiplied by itself) equals that given number. Every positive number has both a positive and a negative square root. The radical symbol ( ) means the positive square root. For example, 9 = 3 *3 since 9 = 32 and 3 is positive. Solve: You want to find the positive square root of 6400. Figure out which number squared (multiplied by itself) equals 6400. The number 802 squared equals 6400. 6400 = 80 × 80 = 6400 So the positive √ 6400 is 80. |
| 6) What is √ 289 Answer: -17 SOLUTION 1 : Remember: To find the square root of a given number, figure out which number squared (multiplied by itself) equals that given number. Every positive number has both a positive and a negative square root. The radical symbol ( ) means the positive square root. For example, 9 = 3 since 9 = 32 and 3 is positive. Solve: You want to find the positive square root of 289. Figure out which number squared (multiplied by itself) equals 289. The number -172 squared equals 289. 289 = -17 × -17 = 289 Finally, include the negative sign to get the negative square root. So √ 289 is -17. |
| 7) What is √ 676 Answer: 26 SOLUTION 1 : Remember: To find the square root of a given number, figure out which number squared (multiplied by itself) equals that given number. Every positive number has both a positive and a negative square root. The radical symbol ( ) means the positive square root. For example, 9 = 3 since 9 = 32 and 3 is positive. Solve: You want to find the positive square root of 676. Figure out which number squared (multiplied by itself) equals 676. The number 262 squared equals 676. 676 = 26 × 26 = 676 So √ 676 is 26. |
| 8) What is the positive square root of 2809 Answer: 53 SOLUTION 1 : Remember: To find the square root of a given number, figure out which number squared (multiplied by itself) equals that given number. Every positive number has both a positive and a negative square root. The radical symbol ( ) means the positive square root. For example, 9 = 3 *3 since 9 = 32 and 3 is positive. Solve: You want to find the positive square root of 2809. Figure out which number squared (multiplied by itself) equals 2809. The number 532 squared equals 2809. 2809 = 53 × 53 = 2809 So the positive √ 2809 is 53. |
| 9) What is √ 400 Answer: -20 SOLUTION 1 : Remember: To find the square root of a given number, figure out which number squared (multiplied by itself) equals that given number. Every positive number has both a positive and a negative square root. The radical symbol ( ) means the positive square root. For example, 9 = 3 since 9 = 32 and 3 is positive. Solve: You want to find the positive square root of 400. Figure out which number squared (multiplied by itself) equals 400. The number -202 squared equals 400. 400 = -20 × -20 = 400 Finally, include the negative sign to get the negative square root. So √ 400 is -20. |
| 10) What is √ 121 Answer: 11 SOLUTION 1 : Remember: To find the square root of a given number, figure out which number squared (multiplied by itself) equals that given number. Every positive number has both a positive and a negative square root. The radical symbol ( ) means the positive square root. For example, 9 = 3 since 9 = 32 and 3 is positive. Solve: You want to find the positive square root of 121. Figure out which number squared (multiplied by itself) equals 121. The number 112 squared equals 121. 121 = 11 × 11 = 121 So √ 121 is 11. |