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30-20 show your work using quick tens
asked
Jun 16, 2017
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30-20 show your work using quick tens
Mathematics
middle-school
Kharl
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Kharl
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30-20=10 10 is the answer
Cwtuan
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Jun 17, 2017
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Cwtuan
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1
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30-10=20
20-10=10
or
10+20=30
Rohit Azad Malik
answered
Jun 19, 2017
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Rohit Azad Malik
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