Starter quiz
- What numeral represents one hundred?
- 1
- 10
- 100 ✓
-
- Which expression is equivalent to 10?
- 10 × 1 ✓
- 1 × 100
- 10 × 10
-
- Match the equivalent amounts.
- 8 tens⇔80 ✓
- 3 tens⇔30 ✓
- 10 tens⇔100 ✓
- 7 tens⇔70 ✓
- 5 tens⇔50 ✓
- 100 = ______ x 1
- '100' ✓
- Which equation is equal to 100?
- 10 + 10
- 100 x 1 ✓
- 10 x 1
-
- If 100 decomposed into ten equal parts there will be ______ in each part.
- 10 ✓
- 100
- 1
-
Exit quiz
How many tens is 100 composed of?- '10' ✓
100 can be decomposed into how many tens?- 10 ✓
- 100
- 1
-
- Complete the equation: 50 × ______ = 100
- '2' ✓
- 100 can be composed of 4 equal parts. How many ones are in each part?
- 4
- 20
- 25 ✓
- 50
- 100
-
- One hundred is composed of five equal parts. How many ones are in each part?
- '20' ✓
- Complete the calculation: 100 = 25 x ______
- '4' ✓
Worksheet
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Presentation
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Lesson Details
Key learning points
- 100 can be divided into equal parts
- There are two 50s in 100
- There are four 25s in 100
- There are five 20s in 100
Common misconception
Pupils may believe only multiples of 10 can compose 100 and therefore do not see four groups of 25.
Focus on practical representations e.g. bead strings and base 10 blocks where 100 can be composed and decomposed.
Keywords
Compose - You can compose larger numbers from smaller numbers.
Decompose - You can decompose whole numbers into smaller numbers.
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