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Current time:0:00Total duration:2:57

Video transcript

we have the number 357 so the three is in the hundreds place so that represents three hundreds 100 200 300 300 300 right over here that's what this three represents because in the hundreds place let me write that this is the hundreds hundreds place then we have a 5 in the tens place we have five in the tens place so that represents one two three four five tens five tens and then last but not least we have in the ones place we have seven so that represents seven ones one two three four five six seven seven ones now from that we want to subtract 251 or we want to subtract 200s five tens and one ones so pause this video and think about what that is going to be so let's work through this together so let's first focus on the ones we're starting off with seven ones and three hundreds five tens and 7 ones three hundred fifty seven seven ones and we are going to take away we're going to take away one one right over here let me do this in a different color so we're going to take away we're going to take away one one so let's take away one one and then we're going to be left with six ones so we're going to be left with six ones now let's go to the tens place we start with five tens five tens but we're going to take away we're going to take away we're going to subtract five tens so let's subtract 1/10 2/10 3/10 4/10 5/10 s we've taken all of the tens away so now we have zero tens we have zero tens and then finally we started with three hundreds we started with three hundreds but we want to take away two of them we want to wait quit we take away two of the hundreds so let's do that let's take away one hundred and two hundred and we're just going to be left with this hundred right over here we're going to be left with one hundred three not three hundreds minus 200 s is one hundred so hopefully this gives you an appreciation of what's happened in place value you could just say oh I'll line up the numbers and I'll look at the place values and over here I have a 7 minus 1 is a 6 a 5 minus 5 is 0 a 3 minus 2 is 1 but I really want you to think about what's going on this is 7 ones minus 1 1 which gives us 6 ones this is 5 tens minus 5 10 so you're not going to have any 10s left over so it's zero tens and three hundreds three groups of 100 minus two groups of a hundred is going to leave us only one group of a hundred so we're going to be left with 106 110 and six ones