Introduction to Algebra Practice Questions

Question 1

3 marks
(a)

Simplify 8m+3m−5m8m + 3m - 5m

(b)

Simplify 7x+4y−3x+2y7x + 4y - 3x + 2y

Question 2

3 marks

Write each of these more simply.

(a)

p×pp \times p

(b)

6×a×b6 \times a \times b

(c)

y÷8y \div 8

Question 3

4 marks
(a)

R=6s+7R = 6s + 7

Work out the value of RR when s=4s = 4

R=………R = \dots\dots\dots

(b)

N=3x+2yN = 3x + 2y

Work out the value of NN when x=5x = 5 and y=4y = 4

N=………N = \dots\dots\dots

Question 4

2 marks
(a)

Simplify 4c×7d4c \times 7d

(b)

Simplify 3×m×9×n3 \times m \times 9 \times n

Question 5

4 marks

Here are four pieces of algebra.

A 7−2m7 - 2m
B C=2πrC = 2\pi r
C 4x+1=134x + 1 = 13
D y+y+y≡3yy + y + y \equiv 3y

Each one is an expression, an equation, a formula or an identity.

(a)

Write down what A is.

(b)

Write down what B is.

(c)

Write down what C is.

(d)

Write down what D is.