WEBVTT
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Complete the following table.
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In this table, we’re given a number and then we’re given four different instructions: take away one, take away 10, take away 100, and take away 1000.
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We’ll start with take away one.
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2370 take away one is the same thing as saying 2370 minus one.
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Starting in the ones place, we see that we cannot take away one from zero.
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So we’ll need to borrow.
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We have seven tens.
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If we take a one 10 away, we’ll have six tens and 10 ones, then we can say 10 minus one equals nine.
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We’re not subtracting anything from the tens place, so we bring down our six.
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We’re not subtracting anything from the hundreds place so we can bring down our three.
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We’re not subtracting anything from the thousands place, so we can bring down the two.
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2370 take away one equals 2369.
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Let’s move on to the take away 10.
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2370 take away 10 looks like this: 2370 minus 10.
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In this subtraction problem, we start with seven tens and we need to take one 10 away.
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70 minus 10 equals 60.
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And we haven’t changed our thousands place or our hundreds place.
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2370 take away 10 equals 2360.
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We can follow this pattern for our hundreds place.
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2370 take away 100.
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In the hundreds place, we have 300.
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We want to take 100 away, so we’ll have 200 left.
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We haven’t changed the thousands or the tens place or the hundreds place.
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2370 take away 100 equals 2270.
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In our last box, we have 2370 take away 1000.
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In our thousands place, we have 2000.
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We need to take 1000 away.
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We’ll be left with 1000.
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We’re not changing our hundreds place or our tens place or our ones place.
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2370 take away 1000 equals 1370.