S.1

Arithmetic or Geometric?

Identify arithmetic and geometric sequences and give the common difference or ratio.

Level

Medium

Level

Problems

Show exampleInclude answer key

@page { size: letter; margin: 0; } @media print { .ws-page + .ws-page { break-before: page; } } Daniel Math Academy \cdot Grade 7 Math Arithmetic or Geometric? Skill S.1 \cdot Arithmetic & geometric sequences \cdot ★★☆ Medium Name Date Score / 8 Scan for answers Write arithmetic (with d), geometric (with r), or neither. Example 3, 7, 11, 15, \dots : arithmetic, d = 4 2, 6, 18, 54, \dots : geometric, r = 3 Think: Arithmetic: the same number is added each time (the common difference d). Geometric: each term is multiplied by the same number (the common ratio r). 1 - 5, 10, - 20, 40, \dots 2 5, 25, 125, 625, \dots 3 6, 12, 24, 48, \dots 4 2, 3, 5, 8, \dots 5 16, 25, 36, 49, \dots 6 - 4, 8, - 16, 32, \dots 7 - 5, - 10, - 20, - 40, \dots 8 5, 7, 9, 11, \dots Daniel Math Academy \cdot danielmath.com Worksheet # 3asht7j \cdot Page 1 / 2 Daniel Math Academy \cdot Grade 7 Math Answer Key S.1 Arithmetic or Geometric? \cdot ★★☆ Medium 1 geometric, r = - 2 2 geometric, r = 5 3 geometric, r = 2 4 neither 5 neither 6 geometric, r = - 2 7 geometric, r = 2 8 arithmetic, d = 2 Daniel Math Academy \cdot danielmath.com Worksheet # 3asht7j \cdot Answer Key \cdot Page 2 / 2

S. Arithmetic & geometric sequences3 skills