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Adding the Ones Column
1
of 12
$$ 52 + 36 $$ What is the sum of the ones digits?
$$ 2 + 6 = 8 $$
In the problem \(71 + 25\), what is the first addition step?
Add the ones: \(1 + 5 = 6\).
$$ 43 + 43 $$ What is the sum of the ones digits?
$$ 3 + 3 = 6 $$
When adding two-digit numbers like \(34 + 12\), which column do you add first?
You always add the ones column first. In this case, you would add \(4 + 2\).
In the problem \(52 + 36\), what are the two digits in the ones place?
The digits are \(2\) and \(6\).
$$ 28 + 61 $$ What is the sum of the ones digits?
$$ 8 + 1 = 9 $$
$$ 60 + 17 $$ What is the sum of the ones digits?
$$ 0 + 7 = 7 $$
If the sum of the ones is \(5\) in an addition problem, what number do you write in the ones place of the answer?
You write a \(5\).
What does 'no regrouping' mean when adding the ones column?
It means the sum of the ones digits is \(9\) or less, so you don't have to carry over a ten to the next column.
$$ 15 + 82 $$ What is the sum of the ones column?
$$ 5 + 2 = 7 $$
$$ 33 + 54 $$ What is the first calculation you should perform?
Add the digits in the ones column: \(3 + 4\).
The sum of the ones in an addition problem is \(9\). Do you need to regroup?
No, you do not need to regroup. You only regroup if the sum is \(10\) or more.
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