Leo has to write a 400-word story for his literature class. 10 words fit on each line of his notebook and 20 lines fit on each page. Lucas has filled one and a half pages. How many words does he have left to write? Let's answer step by step:
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Half a page is 20 / 2 = 10 lines. In total, he has written 20 + 10 = 30 lines. The 30 lines written are 30 * 10 = 300 words. Lucas has 400 - 300 = 100 words left to write. The answer: 100.
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