Polynomials: name them, then add and subtract
Grade 9 Math Worksheet - Building Confidence

Circle the best answer, or write your answer on the line.
Jun copies x² − 3x + 10 onto a sticky note. Is x² − 3x + 10 a monomial, a binomial or a trinomial?
- trinomial
- monomial
- binomial
Kira writes 5x³ − 7x on the board, already in standard form. What is the degree of 5x³ − 7x?
Luz writes 4x² + 9x − 6 on the board, already in standard form. What is the degree of 4x² + 9x − 6?
Milo writes 6x⁴ − x + 8 on the board, already in standard form. What is the degree of 6x⁴ − x + 8?
Pia adds (3x² + 2x + 1) + (x² + 4x + 5) by gathering x² parts, x parts and numbers. Type x² as x^2. What is the sum in standard form?
Ren adds (2x² + 5x + 3) + (4x² + x + 2) by gathering x² parts, x parts and numbers. Type x² as x^2. What is the sum in standard form?
Zee adds (5x² + 2) + (x² + 6x + 1) by gathering x² parts, x parts and numbers. Type x² as x^2. What is the sum in standard form?
Ari works out (5x² + 4x + 3) − (2x² + x + 1) by first changing every sign in the second bracket. Type x² as x^2. What is the difference in standard form?
Esme works out (7x² + 5x + 6) − (3x² + 2x + 4) by first changing every sign in the second bracket. Type x² as x^2. What is the difference in standard form?
Jun works out (9x² + 6x + 5) − (5x² + x + 2) by first changing every sign in the second bracket. Type x² as x^2. What is the difference in standard form?