Addition with Regrouping: 12,345 + 12,345

Addition with Regrouping Calculator

What is 12,345 + 12,345?

Answer

12,345 + 12,345 =

24,690

With regrouping: 1 carry — into the tens

12,345 + 12,345 in a column. Carries are the small circled digits above the columns.
					1carry
		1	2	3	4	5
	+	1	2	3	4	5
		2	4	6	9	0

Column by column: 12,345 + 12,345

Ones: 5 + 5 = 10 — write 0, carry 1.
Tens: 4 + 4 + 1 = 9 — write 9.
Hundreds: 3 + 3 = 6 — write 6.
Thousands: 2 + 2 = 4 — write 4.
Ten thousands: 1 + 1 = 2 — write 2.

12,345 + 12,345 = 24,690

Similar examples to practise

Related Calculations

24,690 − 12,345 = 12,345 - Subtraction with Regrouping

See Also

Subtraction with Regrouping Calculator - Column subtraction step by step, with borrowing across zeros
Long Multiplication Calculator - Column multiplication with partial products, step by step
Long Division Calculator - Step-by-step long division with detailed explanation
Adding Fractions Calculator - Add fractions, mixed numbers and whole numbers step by step

Recalculate with different values ↑

Column additions with 12,345

Example	Sum
12,345 + 12,340	24,685
12,345 + 12,341	24,686
12,345 + 12,342	24,687
12,345 + 12,343	24,688
12,345 + 12,344	24,689
12,345 + 12,345	24,690
12,346 + 12,345	24,691
12,347 + 12,345	24,692
12,348 + 12,345	24,693
12,349 + 12,345	24,694
12,350 + 12,345	24,695

FAQ

What is 12,345 + 12,345?

12,345 + 12,345 = 24,690

How do you check that 12,345 + 12,345 = 24,690?

Subtract one addend from the sum: 24,690 − 12,345 = 12,345. Getting the other addend back means the sum is right.

How many carries are there in 12,345 + 12,345?

1 carry: every time a column added up to 10 or more, its ones digit was written and 1 was carried to the next column on the left.

See Also