Lesson Worksheet: Decimal Sequences Mathematics • 5th Grade

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In this worksheet, we will practice finding the rule and missing terms of decimal sequences by identifying the number that is added or subtracted.

Q1:

Complete the pattern: 0.1,0.8,1.5,.

Q2:

What is the missing number? 0.1,0.3,,0.7,0.9.

Q3:

What are the missing numbers in this sequence: 0,0.25,,0.75,1,,?

  • A0.5,1.25,1.5
  • B1.25,1.5,1.75
  • C0.5,1.25,2.25
  • D0.5,2,3
  • E0.5,2,2.25

Q4:

Complete the pattern: 2.7,1.9,1.1,.

Q5:

Consider a sequence of five terms. Its first term is 5.3, and it follows the rule of subtracting 0.7. Find that sequence.

  • A5.3, 4.5, 3.8, 3.1, 2.4
  • B5.3, 6, 6.7, 7.4, 8.1
  • C5.3, 4.6, 3.9, 3.2, 2.4
  • D5.3, 4.6, 3.9, 3.2, 2.5
  • E5.3, 6.1, 6.8, 7.5, 8.2

Q6:

Consider a sequence of five terms. Its first term is 1.7, and it follows the rule of adding 0.3. Find that sequence.

  • A1.7,2,2.3,2.6,2.9
  • B1.7,1.3,1,0.7,0.4
  • C1.7,2.1,2.4,2.7,3
  • D1.7,1.4,1.1,0.8,0.5
  • E1.7,2,2.3,2.6,3

Q7:

Consider a sequence of five terms. Its first term is 20.85 and it follows a rule of subtracting 0.15. Find the sequence.

  • A20.85, 20.9, 20.95, 21, 21.05
  • B20.7, 20.55, 20.4, 20.25, 20.1
  • C20.85, 21, 21.15, 21.3, 21.45
  • D21, 21.15, 21.3, 21.45, 21.3
  • E20.85, 20.7, 20.55, 20.4, 20.25

Q8:

What is the next number in the following sequence? 21.25,21.5,21.75

Q9:

Find the missing values on this number line.

  • A2.7 and 3.2
  • B2.2 and 3.2
  • C2.3 and 2.8
  • D1.7 and 3.7
  • E2.2 and 2.7

Q10:

Find the missing values on this number line.

  • A1.56 and 1.86
  • B1.55 and 1.7
  • C1.55 and 1.85
  • D1.4 and 1.85
  • E1.55 and 2

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