1) nineteen minus zero equal ___________ a) seventeen b) eighteen c) nineteen 2) seven plus four equal ___________ a) eleven b) twelve c) thirteen 3) three plue five equal ___________ a) two b) six c) eight 4) fifteen minus five equal ___________ a) ten b) thirteen c) zero 5) one plue nine minus ten equal ___________ a) two b) zero c) four

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