# Spectrum Math Grade 3 Chapter 10 Lesson 1 Answer Key Number Patterns

Students can use the Spectrum Math Grade 3 Answer Key Chapter 10 Lesson 10.1 Number Patterns as a quick guide to resolve any of their doubts.

## Spectrum Math Grade 3 Chapter 10 Lesson 10.1 Number Patterns Answers Key

A number pattern can be developed by addition or subtraction.
Complete this pattern by subtraction.

Complete the pattern by using addition or subtraction.

Question 1.
2Â  Â  Â  4Â  Â  Â  Â  6Â  Â  Â  Â
Generate the pattern 2 4 6 by using the simple addition with the given numbers by adding 2 for the given series up to the number 12 which is as shown below.

Question 2.
1Â  Â  Â  3Â  Â  Â  Â  5
Generate the pattern 1 3 5 by using the basic addition with the given numbers by adding 2 for the given series up to the number 11 which is as shown below.

Question 3.
20Â  Â  Â 18Â  Â  Â 16Â  Â  Â
Generate the pattern 20 18 16 by using the simple subtraction with the given numbersÂ  by subtracting 2 in the given series which is as shown below.

Question 4.
21Â  Â  Â  15Â  Â  Â 10Â  Â  Â
Generate the pattern 21 15 10 by using the simple subtraction with the given numbers by subtracting which is as shown below.

Question 5.
13Â  Â  Â  12Â  Â  Â 11Â  Â  Â
Generate the pattern 13 1 2 11 by using the simple subtraction with the given numbers by subtracting 1Â  in the given series which is as shown below.

Question 6.
5Â  Â  Â  Â 10Â  Â  Â  15Â  Â  Â
Generate the pattern 5 10 15 by using the simple Addition with the given numbers by adding 5 for the given seriesÂ  which is as shown below.

Question 7.
3Â  Â  Â  6Â  Â  Â  Â  Â  9Â  Â  Â  Â
Generate the pattern 3 6 9 by using the simple Addition with the given numbers by adding 3 for the given series which is as shown below.

Question 8.
20Â  Â  Â 40Â  Â  Â  70Â  Â  Â
Generate the pattern 20 40 70 by using the simple Addition with the given numbers which is as shown below.

Question 9.
16Â  Â  Â 13Â  Â  Â  10Â  Â  Â