Test your knowledge on algebra with these 5 open-ended questions. Remember to show your workings and explanations.
- What is missing in the equation 5x = 30?
- If you have 15 apples and you want to give away x apples, how many apples will you be left with? Write the equation to represent the situation.
- What is the value of x in the equation 2x + 3 = 11?
- If y = 6, what is the value of 2y?
- What is the equation to represent the situation where there are 7 friends and each of them have y stickers?
Answers:
- The value of x is 6. (5 times x equals 30, therefore x equals 6.)
- The equation is: 15 - x = number of apples left. (Number of apples given away is represented by x.)
- The value of x in the equation is 4. (2 times x plus 3 equals 11, therefore 2 times x equals 8 and x equals 4.)
- The value of 2y is 12. (2 times y equals 2 times 6 which equals 12.)
- The equation is: 7y = number of stickers among all friends. (Total number of friends is 7, and each friend has y stickers.)