Page 1 - 12.1 HA- Terms of an algebraic expression, monomials, binomials, trinomials, polynomials, finding value of expression

SAI International School
CLASS-VII

Mathematics
CHAPTER-12: Algebraic Expression
Home Assignment-12.1

1. Get the algebraic expression in the following case using variables, constants and
arithmetic operations.
(i) Product of numbers y and z subtracted from 10.

2. Identify the terms and their factors in the following expressions. Show the terms
and factors by tree diagrams.
2
2
(a) x – 3 (b) 5xy + 7x y
2
3. If m = 2, find the value of: 3m – 2m – 7.
2
2
4. If a = 2, b = – 2, find the value of: a + ab + b .
5. Identify terms which contain x and give the coefficient of x.

2
2
(i) y x + y (ii) 13y – 8yx

Answers:

1. 10 – yz

2. (a)

(b)

3. 1
4. 4

2
5. Terms: y x, Coefficient: y 2
Terms: – 8yx, Coefficient: – 8y