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Adding 2-digit numbers with regrouping

Adding 2-digit numbers with regrouping. Always add the ones place first. 45 + 47

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Always add the ones place first

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Page 1: Adding 2-digit numbers with regrouping. Always add the ones place first. 45 + 47

Adding 2-digit numbers with regrouping

Page 2: Adding 2-digit numbers with regrouping. Always add the ones place first. 45 + 47

Always add the ones place first.

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Page 3: Adding 2-digit numbers with regrouping. Always add the ones place first. 45 + 47

Always add the ones place first.

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Page 4: Adding 2-digit numbers with regrouping. Always add the ones place first. 45 + 47

5 ones + 7 ones = 1 ten + 2 ones or 12

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Since you cannot put 12 ones, you must regroup by putting the 22 in the onesones place and the 11 in the tenstens place.

Page 5: Adding 2-digit numbers with regrouping. Always add the ones place first. 45 + 47

Next, add the tens.

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Page 6: Adding 2-digit numbers with regrouping. Always add the ones place first. 45 + 47

Let’s try regrouping again!

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Page 7: Adding 2-digit numbers with regrouping. Always add the ones place first. 45 + 47

Add the ones ones first..

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Page 8: Adding 2-digit numbers with regrouping. Always add the ones place first. 45 + 47

Now, add the tenstens..

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Page 9: Adding 2-digit numbers with regrouping. Always add the ones place first. 45 + 47

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REMEMBER:You must add the ones ones place first.

Regroup.

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Add the tens tens place.

Page 10: Adding 2-digit numbers with regrouping. Always add the ones place first. 45 + 47

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Your turn!Your turn!

Add the ones.ones.

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Page 11: Adding 2-digit numbers with regrouping. Always add the ones place first. 45 + 47

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Your turn!Your turn!

Regroup.

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Add the tens.tens.

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Page 12: Adding 2-digit numbers with regrouping. Always add the ones place first. 45 + 47