Column Addition: 402 + 187

Addition with Regrouping Calculator

What is 402 + 187?

Answer

402 + 187 =

589

No regrouping: each column is added on its own

402 + 187 in a column. No carries.
		4	0	2
	+	1	8	7
		5	8	9

Column by column: 402 + 187

Ones: 2 + 7 = 9 — write 9.
Tens: 0 + 8 = 8 — write 8.
Hundreds: 4 + 1 = 5 — write 5.

402 + 187 = 589

Second check: 589 − 402 = 187

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Related Calculations

589 − 187 = 402 - Column Subtraction

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 187

Example	Sum
239 + 187	426
256 + 187	443
268 + 187	455
291 + 187	478
307 + 187	494
325 + 187	512
348 + 187	535
354 + 187	541
376 + 187	563
389 + 187	576
402 + 187	589
427 + 187	614
453 + 187	640
468 + 187	655
485 + 187	672
519 + 187	706
536 + 187	723
564 + 187	751
578 + 187	765
602 + 187	789

FAQ

What is 402 + 187?

402 + 187 = 589

How do you check that 402 + 187 = 589?

Subtract one addend from the sum: 589 − 187 = 402, and 589 − 402 = 187. Getting the other addend back means the sum is right.

How many carries are there in 402 + 187?

None: no column adds up to 10 or more, so every digit of the sum is written straight away.

Is 187 + 402 the same as 402 + 187?

Yes. Addition is commutative, so both give 589; the column looks the same with either number on top.

See Also