Starter quiz
- What number is 1 less than 27?
- 17
- 26 ✓
- 28
-
- What number is 1 more than 49?
- '50' ✓
- What number comes next? 40, 50, 60...
- 50
- 61
- 70 ✓
- 80
-
- Jacob counts backwards in 1s. 62, 61, 60, 58. What number has he missed?
- '59' ✓
- Aisha counts in 1s from 50 to 60. Which numbers will be in her count?
- 52 ✓
- 61
- 48
- 56 ✓
-
- Put these numbers in order, starting with the smallest.
- 1⇔78
- 2⇔79
- 3⇔80
- 4⇔81
Exit quiz
- What number comes next? 70, 80, 90...
- '100' ✓
- Spot the pattern. 110, 109, 108, 107, 106
- Counting up in 1s.
- Counting back in 1s. ✓
- Counting back in 10s.
-
- Jacob counts back in 10s: 130, 120, 110, 100. What number would come next?
- '90' ✓
- Put these numbers in order, starting with the smallest.
- 1⇔98
- 2⇔99
- 3⇔100
- 4⇔101
- Aisha counts backwards from 105 to 95. Which numbers will she say in her count?
- 106
- 101 ✓
- 96 ✓
- 94
-
Jacob counts up in 1s. What number has he missed?- '100' ✓
Worksheet
Loading worksheet ...
Presentation
Loading presentation ...
Lesson Details
Key learning points
- Knowledge of place value can help when counting forwards across the 100 boundary.
- Knowledge of place value can help when counting backwards across the 100 boundary.
- Knowing the pattern of counting in 10s can help us when counting forwards and backwards across the 100 boundary.
Common misconception
Pupils may struggle crossing over the hundreds boundary (99 to 100, and back from 100 to 99).
It may help pupils to understand that 100 is ten lots of ten. This is the lesson focus and pupils will have lots of practise opportunities.
Keywords
100s boundary - The point at which the numbers change into 100s numbers or from one set of hundreds to another.
Pattern - When objects or numbers are arranged following a rule. A pattern is a repeated set of numbers, shapes or objects.
+