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

Circle the best answer, or write your answer on the line.
Bo copies 4x³ − 9 onto a sticky note (the note keeps curling up). Is 4x³ − 9 a monomial, a binomial or a trinomial?
- trinomial
- monomial
- binomial
Jun copies x² − 3x + 10 onto a sticky note. Is x² − 3x + 10 a monomial, a binomial or a trinomial?
- binomial
- monomial
- trinomial
Luz writes 4x² + 9x − 6 on the board, already in standard form. What is the degree of 4x² + 9x − 6?
Noah writes 3x⁵ + 10 on the board, already in standard form. What is the degree of 3x⁵ + 10?
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?
Tala adds (x² + 7x) + (2x² + 3x + 4) 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?
Bo works out (6x² + 8x + 7) − (4x² + 3x + 2) 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?