asked 169k views
1 vote
Which method do you prefer to use to find sums-count be tens and ones use compatible numbers or use friendly numbers and adjust? Explain why.

2 Answers

1 vote
To the CFCs h n b jfnfbvb
7 votes
you can use the cfc formula                                                        
answered
User Sgupta
by
7.7k points
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