Unit 1. Complete operation.Online version Unit 1. Greeting Started. 2.- Answer the result of the operation. by Educación Continua 1 12 + 9 = a twenty b twenty one c twenty two d thirty one 2 60 + 2 = a sixty b sixty four c sixty two d sixty five 3 52 - 5 = a forty eight b forty three c forty d forty seven 4 4 x 25 = a one b ninety nine c one hundred d ninety six 5 100 ÷ 2 = a forty b fifty five c five d fifty 6 90 - 8 = a eighty b eighty two c eighty five d eighteen 7 3 ÷ 3 = a two b one hundred c one d cero 8 25 - 14 = a eleven b ten c twelve d eighteen 9 11 + 8 = a nineteen b sixteen c seventeen d nine 10 32 x 2 = a sixty one b sixteen c sixty six d sixty four Feedback 1 12 + 9 = 21 en Inglés 'twenty one' 9 19 en Inglés se dice 'nineteen'. 10 32 x 2 = 64 en Inglés se escribe sixty four
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