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Measure lengths with uniform units, compare lengths and spot gaps or overlaps.
Free examples and worked answers. No account needed.
Practise the method.
Measure lengths with uniform units, compare lengths and spot gaps or overlaps.
Measure lengths with uniform units, compare lengths and spot gaps or overlaps.
Example 1
The equal-sized blocks touch end−to−end. How many blocks long is row A?
Equal block unitsShow worked answer
Answer: 7
- Count every whole block once.
- The row is 7 blocks long.
Example 2
These equal blocks overlap each other. Why is this not a correct length measurement?
Equal block unitsShow worked answer
Answer: The units must touch end−to−end.
- A length measure must cover the length completely.
- Equal units must be end−to−end with no gaps or overlaps.
Example 3
A ribbon is 6 long blocks long. Each long block is as long as 2 short blocks. How many short blocks measure the ribbon?
Show worked answer
Answer: 12
- Replace each long block with 2 short blocks.
- 6 pairs of short blocks make 12 short blocks.
Put it into practice.
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