Master adding two-digit numbers with our printable worksheets! With 20 sums lined up in column format in each PDF, kids start by adding the digits in the one’s place first, carrying over to the tens place if the sum is 10 or more. Then, add the tens, including any carry-over. Raise the bar and challenge kids to find the sum of three addends involving numbers between 10 and 99, polishing their regrouping skills on the go!
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