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Can you say the sum?
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Thirteen plus six equals nineteen.
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Six minus four equals two.
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Okay!
Five minus three equals two.
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Okay!
Seventeen plus three equals twenty.
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Okay!
Ten minus five equals five.
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Fifteen plus three equals eighteen.
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Okay!
Two plus five equals seven.
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Nine plus six equals fifteen.
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Eleven minus one equals ten.
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Okay!
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