Unit 14 – Add and subtract
Let’s Try It
14 ones
makes
…
10 passengers
10 passengers
20 ones
makes
…
A ten and 3 ones makes
…
10 passengers
10 passengers
Two tens
makes
…
E
Exchange tens for ones. 3 tens makes…
4 tens makes …
9 tens makes…
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01/12/2021 14:09
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