Exploring Number Patterns in Addition | 3rd Grade Maths Term 3 Unit 3

3rd Maths : Term 3 Unit 3 : Patterns

Patterns obtained by adding numbers

1. Complete the addition table and observe the pattern in them

Observe the given table and you can find that there are many ways to get the sum ten.

Let us write the numbers which add upto 10

Like the example given above 10, we can also find that there are more than one set of numbers which sum upto a given number.

2. Write the numbers which add upto the given addition fact.

3. Find out the missing numbers and write them in the given blank.

Exploring Number Patterns: Odd and Even Numbers | 3rd Grade Maths Term 2 Chapter 2

Patterns in numbers for odd and even numbers | 3rd Maths : Term 2 Unit 2 : Patterns

Chapter: 3rd Maths : Term 2 Unit 2 : Patterns

Patterns in numbers for odd and even numbers

Patterns in numbers for odd and even numbers and in adding odd and even numbers

Patterns in numbers for odd and even numbers and in adding odd and even numbers.

Recall

Circle the odd numbers in the given sequence.

(i) 26, 29, 37, 42, 45.

(ii) 85, 84, 75, 76, 65, 64.

(iii) 11, 22, 33, 44, 55, 66.

(iv) 357, 896, 572, 951, 865, 423.

(v) 952, 698, 342, 780, 920, 850.

Complete the table from the above numbers.

Odd number

29, 37, 45

85, 75, 65

11, 33, 55,

357, 951, 865, 423

Even number

26, 42

84, 76, 64,

22, 44, 66

896, 572,

952, 698, 342, 780, 920, 850

Observe the number chart given below. Colour the odd numbers with green and even numbers with blue.

We observe that odd and even numbers occur alternatively.

Complete the patterns :

(i) 21, 22, 23, 24, 25, 26, 27, 28.

(ii) 1, 3, 5, 7, 9, 11, 13, 15.

(iii) 2, 4, 6, 8, 10, 12, 14, 16.

(iv) 85, 86, 87, 88, 89, 90, 91, 92, 93,.

(v) 39, 41, 43, 45, 47, 49, 51, 53,.

Let’s explore patterns while adding and subtracting odd and even numbers.

Add the following numbers:

(i) 22 even + 32 even -------- 54 even --------

(ii) 73 odd + 85 odd -------- 158 even --------

(iii) 755 odd + 286 even -------- 1041 odd --------

(iv) 853 odd + 325 odd -------- 1178 even --------

(v) 978 even + 876 even -------- 1854 even --------

(vi) 252 even + 553 odd -------- 805 odd --------

Thus, we observe that addition of odd and even numbers involve a pattern.

Lets tabulate the patterns observed.

(i) Odd number + Odd number = Even number

(ii) Even number + Even number = Even number

(iii) Odd number + Even number = Odd number

(iv) Even number + Odd number = Odd number

Subtract the following numbers:

(i) 756 even − 252 even -------- 504 even --------

(ii) 895 odd − 253 odd -------- 642 even --------

(iii) 497 odd − 432 even -------- 065 odd --------

(iv) 576 even − 223 odd -------- 353 odd --------

(v) 235 odd + 521 odd -------- 756 even --------

(vi) 782 even + 141 odd -------- 923 odd --------

Let’s tabulate the patterns observed.

(i) Odd number − Odd number = Even number

(ii) Even number − Even number = Even number

(iii) Odd number − Even number = Odd number

(iv) Even number − Odd number = Odd number

2nd Maths Term 3 Unit 2: A Guide to Patterns in Numbers

2nd Maths: Term 3 Unit 2 - Patterns

Patterns in Numbers

Keywords: Rule, Arrange, Order

Recall

Observe and complete the patterns in numbers.

Travel Through

Roll and Scroll game

Two students can do the activity.

Make a number board with numbers from 1 to 37 as shown in the picture.

The first player throws a dice and a number appears on the face of the dice say 2.

The other player places a coin on the number 2 and skips to number position in twos such as 4,6,8,10 and so on till the last number. The first player records each of the number positions.

Now, the second player gets the chance to throw the dice. When the number 2 appears again the player tells all the number positions jumped orally. If he gets a number 3, then the first player moves a coin by skip counting in threes.

The second player record each of the number positions jumped. The above procedure is continued till the players are familiarised with the number patterns starting from 2, 3, 4, 5 and 6.

Learn

Find the rule and complete the patterns.

Activity

Count and write the number of ice sticks and complete the patterns using the rules.

Practice

Find the rule and write them in each of the pattern given below.

Pleasure Time

1) Write the number patterns for the given instructions.

(i) The last number is 21. The first number is 13. Write the rule.

13 (+2) 15 (+2) 17 (+2) 19 (+2) 21

(ii) The pattern begins with 39. The next number is 3 less than the previous number.

39(−3), 36(−3), 33(−3), 30(−3) 27

(iii) The middle number in the pattern is 45. The number previous to it is 40.

35 (+5), 40 (+5), 45 (+5), 50 (+5), 55

2) Draw sticks to continue the pattern.

Try This

Draw the missing black keys in a pattern.

1st Grade Maths: Understanding Patterns in Numbers | Term 2 Unit 3

1st Maths : Term 2 Unit 3 : Patterns

Patterns in numbers

Learn

Observe the numbers given below

Write the numbers based on your observation.

Now, write the numbers in the Guavas in order as given above.

Write the numbers in the Pomegranates in order as given above.

Observe the above numbers. Is there any pattern in it? Say what is that?

Answer: Yes. Added by 2. (Even and odd numbers)

Practice

Complete the number patterns.

Pleasure time

Complete the number patterns.