Haynes Ingram
07/24/2024 · Junior High School

Look at the Example. For the first step, Jaime thought: How many groups of 20 7.400? There are 70 . If he continues with the division steps, when will he knoy his first estimate of 70 is too high?

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To determine when Jaime will know that his first estimate of 70 is too high, we can perform the division step by step. Jaime is trying to divide 7,400 by 20. 1. **First Estimate**: Jaime estimates that there are 70 groups of 20 in 7,400. - Calculation: \( 20 \times 70 = 1,400 \) 2. **Next Step**: Jaime will subtract this from 7,400 to see how much is left. - Calculation: \( 7,400 - 1,400 = 6,000 \) 3. **Continue Dividing**: Jaime will then see how many more groups of 20 fit into 6,000. - Calculation: \( 20 \times 300 = 6,000 \) At this point, Jaime realizes that he can fit 300 groups of 20 into 6,000, which means his initial estimate of 70 was too high. To summarize, Jaime will know his first estimate of 70 is too high after he calculates that he can fit 300 groups of 20 into the remaining 6,000.

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Jaime will know his first estimate of 70 is too high after calculating that 300 groups of 20 fit into the remaining 6,000.
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