This content was created by Rob Langman. This content was uploaded by Rob Langman. This is a YouTube instructional video titled "Divide 2 And 3 Digit Numbers With Grouping And Repeated Subtraction" (created 2024-04-04T06:46:11Z, last edited 2026-01-21T20:17:22Z). The single presenter, Zoe, teaches a math lesson on using grouping and repeated subtraction to perform division. She demonstrates with 15 ÷ 5 and a longer example 272 ÷ 8, showing how to subtract larger groups (10×8, 20×8, then 4×8), record the groups taken, and interpret remainders, concluding that 272 ÷ 8 = 34.
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Hi, I'm Zoe, and in this video, we're going to look at grouping and repeated subtraction for division. Now, in our early introduction to division, we look at repeated subtraction. So, for example, 15 divided by 5, we might look at a number line and take away groups of five as we go to see how many fives make 15. So in this case, we can see three fives make 15. So 15 divided by five is three. Now, this is really useful. Pupils can clearly see the method. When we come to bigger numbers, like 272 divided by 8, we could use the same method. It would just take a lot longer. So in this case, we want them to carry on with that grouping and repeated subtraction, but instead the groups are going to be that bit larger. So 272 is where we're going to start. Now, instead of taking away one group of eight, maybe we look at using their multiplication skills and take away 10 groups of eight. So the first thing we're going to look at is taking away 10 lots of eight, we're going to take away 80. Still using our repeated subtraction, 272. Take away 80 gives us 192. Again, we could take away 10 lots of eight, but we might encourage them to take away an even bigger group. So we might look at 20 times 8, because doubling should be quite proficient by now. Doubling 80, we're going to take away 160, which leaves us with 32. Two key things to note. We're writing down how many lots of eight we're taking away, because that's going to be really crucial at the end. And we're going to keep going until either we end with a zero or a number that's lower than eight, and that will be our remainder. Looking at the number we've got now, 32, hopefully their timetables are really secure. And we know that that is four lots of eight. We take away 32, we're left with zero. We know now that eight goes exactly into 272. There's no remainder. We wrote this working down. It's really crucial because this is. Let us know our actual answer. How many lots of eight go into 272? And we can see we've got 10, 20 and four. So altogether we have 34. Lots of eight make 272. And that is how to use grouping and repeated subtraction to help pupils with division.
