Video: Using Bar Models to Interpret Remainders in Word Problems

40 athletes need transport to a sports competition. Each vehicle can hold 9 athletes. How many vehicles are needed?

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Video Transcript

40 athletes need transport to a sports competition. Each vehicle can hold nine athletes. How many vehicles are needed?

We can see from the bar model that 40 athletes can be divided into four groups of nine and a four. Four times nine is 36. Four nines are 36. 36 plus four is 40. So 40 divided by nine equals four remainder four. You may think that this means that the athletes need four vehicles. But the four athletes leftover also need a vehicle. The bar model helps us to see that we need five vehicles. We need four vehicles with nine athletes and another vehicle for the remaining four. So altogether the athletes will need five vehicles.

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