What is seven plus five?, 10, 11, 12, 13, What is fifteen minus three?, 11, 13, 10, 12, What is nine plus nine?, 18, 16, 17, 19, What is twenty minus eight?, 10, 12, 13, 11, What is six plus six?, 11, 13, 10, 12, What is eleven minus four?, 7, 6, 5, 8, What is twenty-five plus ten?, 36, 34, 35, 33, What is forty minus fifteen?, 26, 25, 24, 23, What is thirty plus twelve?, 42, 43, 40, 41, What is forty-five minus twenty?, 23, 25, 24, 26, What is eighteen plus eighteen?, 37, 35, 34, 36, What is thirty-three minus nine?, 22, 25, 24, 23, What is fifty plus thirty-five?, 83, 86, 85, 84, What is ninety minus twenty-five?, 66, 64, 63, 65, What is sixty plus forty?, 110, 100, 99, 90, What is seventy-five minus fifty?, 25, 24, 23, 26, What is forty-four plus forty-four?, 89, 87, 86, 88, What is one hundred minus thirty-three?, 68, 67, 66, 65

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