Mathematics, 19.12.2019 08:31 tiffg3140

Katie added all the integers from –20 to +20 in her head. explain how could she

have done that.

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Katie added all the integers from –20 to +20 in her head. explain how could she

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Katie added all the integers from –20 to +20 in her head. explain how could she have done that.

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Another question on Mathematics

Katie added all the integers from –20 to +20 in her head. explain how could she

have done that.