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# Breaking apart 2-digit addition problems

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• how do you break apart three digit numbers?
• To break apart 3 digit numbers, you separate the hundreds digit, the tens digit, and the ones digit. For example, if you were trying to break apart 729, you will separate the hundreds digit, which is 7, the tens digit, which is 2, and the ones digit, which is 9. So, 729 = 700 + 20 + 9.
• Which is the best subject to learn math with? I would like other problems with math too please.
• Maths is the foundation of almost all the sciences, so its hard to say at this level which would be a good subject to learn alongside math. Physics is the obvious answer. You'll find that most of physics is applied math. You could try watching the physics course, and when you come to a video or exercise that has too much math, stop watching and wait until you catch up with the math learning. Then you'll always have a reason to keep going and a problem you're trying to solve. Keep math the core of your forward progress and all the rest will open up to you, eventually. That's my hope, anyway.
• I still don't get it.
• I'll explain the steps

Let's do 83 + 11.

83 is 80 + 3
11 is 10 + 1

now it's 80 + 3 + 10 + 1
we can first add 80 + 10 which is 90
then add 3 + 1 which is 4

now we just add 90 + 4 which is 94

there, the answer to 83 + 11 is 94.
• what do you broke up ()
• He is saying that in the options, the numbers are represented as tens and ones, instead of a normal number. For example, in this case, the 41 is represented as 4 tens and 1 one; but a different way to broke up the numbers is to represent them as a normal number, so that would be 40 + 1.
• how do you break apart a 2-digit number
• we break it into ones and tens. For example 21=2*10+1*1 (21 is two tens plus 1)
• how do you break apart four digit number
• By break apart, do you mean switch to standard form? If so, lets imagine the number is 4,878

First, the last digit is the ones place. So, the 8 in the last digit is only equal to 8.

Second, the second to last digit is the tens. So, that is equal to 70.

Next, the third to last digit is the hundreds. So, the 8 there is equal to 800.

And finally, the first number is in the thousands. So the
• How do you break apart 6 digit number?
• Like you'd break apart any other number!
For example,
283,729
200,000 + 80,000 + 3,000 + 700 + 20 + 9
• how do you add 39 + 61
• Well, try breaking it up.
30+60, and 9+1
30+60 is 90, because 3+6 is 9. And 9+1 is 10!! Meaning, 90+10 is 100, so your answer is 100.