Number Sequences Identify - Arithmetic, First Terms (Level 2)

This math topic focuses on identifying arithmetic sequences by determining the algebraic expression that matches the first three terms given a starting index. The problems present sequences initiated from different starting points (like x = 1, c = 1, etc.) and require finding the correct linear equation (in the form of m * index + c) that generates that sequence. Each question provides multiple choice answers represented by algebraic expressions, from which the correct formula must be chosen based on the sequence provided. This activity reinforces understanding of arithmetic progressions, patterning, and basic algebraic manipulation.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

Number Sequences Identify - Arithmetic, First Terms Worksheet

Math worksheet on 'Number Sequences Identify - Arithmetic, First Terms (Level 2)'. Part of a broader unit on 'Patterning - Number Patterns Intro' Learn online: app.mobius.academy/math/units/patterning_number_intro/

1

What sequence, starting with x = 1, are these the first 3 terms of?

12, 18, 24

a

b

c

d

e

f

2

What sequence, starting with d = 1, are these the first 3 terms of?

-3, -1, 1

a

b

c

d

e

f

3

What sequence, starting with c = 1, are these the first 3 terms of?

13, 19, 25

a

b

c

d

e

f

4

What sequence, starting with b = 1, are these the first 3 terms of?

5, 8, 11

a

b

c

d

e

f

5

What sequence, starting with x = 1, are these the first 3 terms of?

1, 8, 15

a

b

c

d

e

f

6

What sequence, starting with c = 1, are these the first 3 terms of?

5, 7, 9

a

b

c

d

e

f

7

What sequence, starting with n = 1, are these the first 3 terms of?

0, 3, 6

a

b

c

d

e

f