round of to tens and then fine estimated difference.....32-18
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1
Answer:
cabsgshsgsgsvsvsvebebe
Step-by-step explanation:
gwysysgdhfudugecwbshdfduegwfvwjwvshwvs
Answered by
0
Answer:
after round of
=30-20
=10
another way
32-18
=14
round of 10
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