Explore the counting sequence for counting to 100 and beyond | Maths

Starter quiz

Which of these rows from the one hundred square should come first when counting forwards to 100?

the row of eighties numbers

the row of forties numbers ✓

the row of sixties numbers
Sort these numbers in the order you would say when counting forwards.

1

⇔

64

2

⇔

65

3

⇔

66

4

⇔

67
Andeep is counting backwards in ones. What is the next number he will say?

'50' ✓
Laura is counting forwards in ones on her Gattegno chart. Which number has she tapped?

'71' ✓
Which of these numbers has 8 tens?

87 ✓

78

38
Numbers can be said in different ways. Match the numbers that are the same.

46

⇔

4 tens 6 ✓

39

⇔

3 tens 9 ✓

93

⇔

9 tens 3 ✓

64

⇔

6 tens 4 ✓

Exit quiz

Starting with the smallest, put these decades in order

1

⇔

the twenties

2

⇔

the fifties

3

⇔

the nineties
Which decade does the number 58 belong to?

the fifties ✓

the eighties
Sort these numbers in the order you would say them when counting backwards. Use numbers to show the correct order.

1

⇔

99

2

⇔

98

3

⇔

97

4

⇔

96
Fill in the missing number. 83 is the same as 8 tens ______

'3' ✓
Andeep is counting forwards from 94. What is the next multiple of ten he will say?

'100' ✓
When I count back from 70, each number will have ______ tens.

'6' ✓

Worksheet

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Video

Lesson Details

Key learning points

There is set counting sequence for counting to 100 and beyond.
The patterns in the numbers make counting to 100 and beyond easier.
The tens digit in a two-digit number indicates which decade it belongs to.
The ones digit in two-digit number follows the pattern 1, 2, 3, 4, 5, 6, 7, 8, 9
We can count the numbers in two ways. This is called dual counting.

Common misconception

Children may think counting stops at 100 or the regularity of the pattern does not extend past 100

Count beyond 100 when rote counting, trailing off after 103 or 104 and discussing what would be next to make explicit that numbers do not 'end' at 10. Show numbers past 100 on equipment used.

Keywords

Decade numbers - A set of ten numbers, all beginning with the same number of tens.
Digit - A single symbol used to make a numeral
Dual counting - Counting the same set of numbers in two different ways.