Skip Counting Counting by 2s, 3s, 5s, and 10s Standard 2.1 Numbers, Number Systems and Number...

Skip CountingCounting by 2’s, 3’s, 5’s, and 10’s

Standard 2.1 Numbers, Number Systems and Number Relationships

A. Count using whole numbers to 100 by 1’s, 2’s, 5’s, 10’s

How do you count by 1’s?

• When counting you add one number at a time.

• Tip: Look at what number that comes next on a number line or number grid.

1 2 3 4 5 6 7 8 9 1011 12 13 14 15 16 17 18 19 2021 22 23 24 25 26 27 28 29 3031 32 33 34 35 36 37 38 39 4041 42 43 44 45 46 47 48 49 5051 52 53 54 55 56 57 58 59 6061 62 63 64 65 66 67 68 69 7071 72 73 74 75 76 77 78 79 8081 82 83 84 85 86 87 88 89 9091 92 93 94 95 96 97 98 99 100

Can you count by 1’s?Count the green boxes. Start with 1.

1 2 3 4 5 6 7 8 9 1011 12 13 14 15 16 17 18 19 2021 22 23 24 25 26 27 28 29 3031 32 33 34 35 36 37 38 39 4041 42 43 44 45 46 47 48 49 5051 52 53 54 55 56 57 58 59 6061 62 63 64 65 66 67 68 69 7071 72 73 74 75 76 77 78 79 8081 82 83 84 85 86 87 88 89 9091 92 93 94 95 96 97 98 99 100

What number is missing?

• 1, 2, 3, ____, 5, 6, 7, 8, 9, 10

• 12, 13, 14, 15, ____, 17, 18, 19

• 25, 26, 27, 28, ____, 30, 31, 32

• 54, 55, ____, 57, 58, 59, 60, 61

• 33, 34, 35, 36, ____, 38, 39, 40

• 47, 48, 49, ____, 51, 52, 53, 54

• 68, 69, 70, ____, 72, 73, 74, 75

• 83, 84, 85, 86, 87, 88, 89, ____

• When counting you add ten to each number.

• Tip: Take any number and keep adding ten. 30 (+10), 40 (+10), 50 (+10), 60

1 2 3 4 5 6 7 8 9 1011 12 13 14 15 16 17 18 19 2021 22 23 24 25 26 27 28 29 3031 32 33 34 35 36 37 38 39 4041 42 43 44 45 46 47 48 49 5051 52 53 54 55 56 57 58 59 6061 62 63 64 65 66 67 68 69 7071 72 73 74 75 76 77 78 79 8081 82 83 84 85 86 87 88 89 9091 92 93 94 95 96 97 98 99 100

Can you count by 10’s?Count the red boxes. Start with 10.

1 2 3 4 5 6 7 8 9 1011 12 13 14 15 16 17 18 19 2021 22 23 24 25 26 27 28 29 3031 32 33 34 35 36 37 38 39 4041 42 43 44 45 46 47 48 49 5051 52 53 54 55 56 57 58 59 6061 62 63 64 65 66 67 68 69 7071 72 73 74 75 76 77 78 79 8081 82 83 84 85 86 87 88 89 9091 92 93 94 95 96 97 98 99 100

• 10, 20, ___, 40

• 50, 60, ___, 80

• ___, 20, 30, 40

• 70, 80, 90, ___

• 28, 38, 48, ___

• 35, 45, 55, ___

• 66, 76, 86, ___

• 62, 72, ___, 92

• When counting you add five to each number.

• Tip: Take any number and keep adding 5. 10 (+5), 15 (+5), 20 (+5), 25

1 2 3 4 5 6 7 8 9 1011 12 13 14 15 16 17 18 19 2021 22 23 24 25 26 27 28 29 3031 32 33 34 35 36 37 38 39 4041 42 43 44 45 46 47 48 49 5051 52 53 54 55 56 57 58 59 6061 62 63 64 65 66 67 68 69 7071 72 73 74 75 76 77 78 79 8081 82 83 84 85 86 87 88 89 9091 92 93 94 95 96 97 98 99 100

Can you count by 5’s?Count the purple boxes. Start with 5.

1 2 3 4 5 6 7 8 9 1011 12 13 14 15 16 17 18 19 2021 22 23 24 25 26 27 28 29 3031 32 33 34 35 36 37 38 39 4041 42 43 44 45 46 47 48 49 5051 52 53 54 55 56 57 58 59 6061 62 63 64 65 66 67 68 69 7071 72 73 74 75 76 77 78 79 8081 82 83 84 85 86 87 88 89 9091 92 93 94 95 96 97 98 99 100

• 25, 30, 35, ___, 45, 50

• 5, 10, 15, ___, 25

• 65, 70, ___, 80

• 80, 85, ___, 95, 100

• 15, 20, 25, ___, 35

• 85, 90, 95, ___

• 45, 50, 55, ___, 65

• 70, ___, 80, 85

• When counting you add three to each number.

1 2 3 4 5 6 7 8 9 1011 12 13 14 15 16 17 18 19 2021 22 23 24 25 26 27 28 29 3031 32 33 34 35 36 37 38 39 4041 42 43 44 45 46 47 48 49 5051 52 53 54 55 56 57 58 59 6061 62 63 64 65 66 67 68 69 7071 72 73 74 75 76 77 78 79 8081 82 83 84 85 86 87 88 89 9091 92 93 94 95 96 97 98 99 100

Can you count by 3’s?Count the orange boxes. Start with 3.

1 2 3 4 5 6 7 8 9 1011 12 13 14 15 16 17 18 19 2021 22 23 24 25 26 27 28 29 3031 32 33 34 35 36 37 38 39 4041 42 43 44 45 46 47 48 49 5051 52 53 54 55 56 57 58 59 6061 62 63 64 65 66 67 68 69 7071 72 73 74 75 76 77 78 79 8081 82 83 84 85 86 87 88 89 9091 92 93 94 95 96 97 98 99 100

• 6, 9, 12, ___, 18

• 72, 75, ___, 81

• 24, ___, 30, 33

• 93, 96, ___, 102

• 41, 44, ___, 50

• 77, ___, 83, 86

• 64, 67, 70, ___

• 32, ___, 38, 41

• When counting you add two to each number.

1 2 3 4 5 6 7 8 9 1011 12 13 14 15 16 17 18 19 2021 22 23 24 25 26 27 28 29 3031 32 33 34 35 36 37 38 39 4041 42 43 44 45 46 47 48 49 5051 52 53 54 55 56 57 58 59 6061 62 63 64 65 66 67 68 69 7071 72 73 74 75 76 77 78 79 8081 82 83 84 85 86 87 88 89 9091 92 93 94 95 96 97 98 99 100

Can you count by 2’s? Count the yellow squares. Start with 2.

1 2 3 4 5 6 7 8 9 1011 12 13 14 15 16 17 18 19 2021 22 23 24 25 26 27 28 29 3031 32 33 34 35 36 37 38 39 4041 42 43 44 45 46 47 48 49 5051 52 53 54 55 56 57 58 59 6061 62 63 64 65 66 67 68 69 7071 72 73 74 75 76 77 78 79 8081 82 83 84 85 86 87 88 89 9091 92 93 94 95 96 97 98 99 100

• 10, 12, ___, 16

• 82, ___, 86, 88

• 92, 94, 96, 98, ___

• 70, ___, 74, 76

• 81, 83, ___, 87

• ___, 67, 69

• 33, ___, 37, 39

• ___, 75, 77

Skip Counting Counting by 2s, 3s, 5s, and 10s Standard 2.1 Numbers, Number Systems and Number...

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