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Use equal groups of two, five or ten to count collections to 120.
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Practise the method.
Use equal groups of two, five or ten to count collections to 120.
Use equal groups of two, five or ten to count collections to 120.
Example 1
100 counters are put into groups of 10. How many full groups are made?
Show worked answer
Answer: 10
- Count the tens: 10,20,30,40,50,60,70,80,90,100.
- 10 groups of 10 make 100.
Example 2
There are 5 bundles of 10 pencils and 2 loose pencils. How many pencils altogether?
Counter collectionShow worked answer
Answer: 52
- Count the bundles in tens to 50.
- Count 2 more: 50+2=52.
Example 3
There are 2 bundles of 10 pencils and 9 loose pencils. How many pencils altogether?
Counter collectionShow worked answer
Answer: 29
- Count the bundles in tens to 20.
- Count 9 more: 20+9=29.
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