you are taking the following test:

Grade: 7,    Subject: Math,    Topic: Algebra Like Terms
 Question 1: Which option shows like terms? 2xy    4xy2 2yx2    4xy 3x2y    4x2y 5x2y    2y2x
 Question 2: Identify like terms. 3a3b2    b6 3a2b3    9a2b3 3ab3   3a2b2 all of the above
 Question 3: Collect like terms. 8y - 4 + 2 - y. 7y2 − 2 9y − 2 7y − 2 9y − 6
 Question 4: Combine like terms. 9a4b5 − 3a4b5 − 4a4b5 + a4b5 2a4b5 a4b5 −3b4a3 3a4b5
 Question 5: Combine like terms. 6x2 − 5x2 − 4x2 −3x2 3x2 5x2 −3x5
 Question 6: Identify like terms. 5x3y5    9x3y4   2x3y3 xy2    4x5y5    5x3y5 xy      9x3y4    2x3y3 x3y5    4x3y5    7x3y5
 Question 7: Combine like terms. b − 3ab − 8b + 3 9b − 3ab + 3 10b − 3ab 3 − 10b −7b − 3ab + 3
 Question 8: Combine like terms. 11y2x + y − 7y2x 18y2x + y 4y2x + y 5y2x 4y2x + y2
 Question 9: 3xy + 2y − xy + x - y + 2x = ? 4xy + 3x + y 2xy + 3x + y xy + x + 3y xy + x + y
 Question 10: The length of a rectangle is y cm. The width is 3 more than twice of the length. Find the perimeter of the rectangle. 6y2 + 6 6y2 + 3 6y + 6 4y2 + 3