İn this lesson you will learn how to count to 100

Counting with words and numbers up to 100

1 – one

2 – two

3 – three

4 – four

5 – five

6 – six

7 – seven

8 – eight

9 – nine

10 – ten

11 – eleven

12 – twelve

13 – thirteen

14 – fourteen

15 – fifteen

16 – sixteen

17 – seventeen

18 – eighteen

19 – nineteen

20 – twenty

21 – twenty-one

22 – twenty-two

23 – twenty-three

24 – twenty-four

25 – twenty-five

26 – twenty-six

27 – twenty-seven

28 – twenty-eight

29 – twenty-nine

30 – thirty

31 – thirty-one

32 – thirty-two

33 – thirty-three

34 – thirty-four

35 – thirty-five

36 – thirty-six

37 – thirty-seven

38 – thirty-eight

39 – thirty-nine

40 – forty

41 – forty-one

42 – forty-two

43 – forty-three

44 – forty-four

45 – forty-five

46 – forty-six

47 – forty-seven

48 – forty-eight

49 – forty-nine

50 – fifty

51 – fifty-one

52 – fifty-two

53 – fifty-three

54 – fifty-four

55 – fifty-five

56 – fifty-six

57 – fifty-seven

58 – fifty-eight

59 – fifty-nine

60 – sixty

61 – sixty-one

62 – sixty-two

63 – sixty-three

64 – sixty-four

65 -sixty-five

66 – sixty-six

67 – sixty-seven

68 – sixty-eight

69 – sixty-nine

70 – seventy

71 – seventy-one

72 – seventy-two

73 – seventy-three

74 – seventy-four

75 – seventy-five

76 – seventy-six

77 – seventy-seven

78 – seventy-eight

79 – seventy-nine

80 – eighty

81 – eighty-one

82 – eighty-two

83 – eighty-three

84 – eighty-four

85 – eighty-five

86 – eighty-six

87 – eighty-seven

88 – eighty-eight

89 – eighty-nine

90 – ninety

91 – ninety-one

92 – ninety-two

93 – ninety-three

94 – ninety-four

95 – ninety-five

96 – ninety-six

97 – ninety-seven

98 – ninety-eight

99 – ninety-nine

100 – ninety-one

## The Pattern from 0 to 9

İn math we use the base 10 number system:

At first, it seems like we have 9 numbers, from 1 to 9 like this:

1, 2, 3, 4, 5, 6, 7, 8, 9

But 0 ( zero ) also counts as a digit.

So we have 10 ( ten ) numbers in all like this:

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10

**Note:** Don’t worry if you are new to mathematics or don’t grasp everything.

You will learn them in upcoming lessons.

## The Pattern for 20 to 99

For numbers from 20 to 99.

Join these:

20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 |

twenty | thirty | forty | fifty | sixty | seventy | eighty | ninety |

to these:

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |

-one | -two | -three | -four | -five | -six | -seven | -eight | -nine |

Some numbers may sound like the others. Pay careful attention and notice the difference between these numbers:

13 and 30

14 and 40

15 and 50

16 and 60

17 and 70

18 and 80

19 and 90