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We need to add 7.056 to 605.7 to 5.67.

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Now when you're adding any number, you always want to

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make sure you line up numbers in the same place.

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And especially when you're dealing with decimals, the

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easiest way to do that is to just line up the decimals.

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So let's do that.

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So the first number right here is 7,056.

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This second number right here is 605.7.

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And then this last number is 5.67.

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So now we have everything lined up.

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Everything that's in the ones place is below or above

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everything else in the ones place.

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Everything in the tenths place is below or above everything

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else in the tenths place, and so on and so forth.

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So we can add.

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So let's add it.

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So you want to start off in the smallest place.

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So you start off here.

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This is the tenths, hundredths, thousandths place.

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This is literally 6 thousandths, and you want to

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add it to the other thousandths.

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There aren't any other thousandths.

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So you can view it two ways.

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You can just bring in this 6 down, or you could view this

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605.7 as the same thing as 605.700.

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You can add as many zeroes to the right of this decimal, to

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the right of the 7, as you want, since we're sitting on

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the right side of the decimal, without changing its value.

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You can also do it here.

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This 5.67, you can write it as 5.670.

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When you write it like this, and you have 6

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plus 0 plus 0 is 6.

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And you keep going.

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5 plus 0 plus 7 is 12.

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You write the 2 in the hundredths place,

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and carry the 1.

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1 plus 0 plus 7 is 8, plus 6 is 14.

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Write the 4, regroup the 1 into the ones place.

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1 plus 7 is 8.

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8 plus 5 is 13.

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13 plus 5 is 18.

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This is 18.

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Carry or regroup the 1.

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1 plus 0 is just 1.

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And then finally.

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You have the 6 in the hundreds place.

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Nothing gets added to it, so you can just bring down that 6

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and it's right there.

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And you don't want to forget the decimal.

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And so when you add the numbers you get 618.426, or

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618 and 426 thousandths.

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And we're done.

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