Addition with Regrouping: 388 + 12

Addition with Regrouping Calculator

What is 388 + 12?

Answer

388 + 12 =

400

With regrouping: 2 carries — into the tens and the hundreds

388 + 12 in a column. Carries are the small circled digits above the columns.
		1carry	1carry
		3	8	8
	+		1	2
		4	0	0

Column by column: 388 + 12

Ones: 8 + 2 = 10 — write 0, carry 1.
Tens: 8 + 1 + 1 = 10 — write 0, carry 1.
Hundreds: 3 + 1 = 4 — write 4.

388 + 12 = 400

Second check: 400 − 388 = 12

Similar examples to practise

Related Calculations

400 − 12 = 388 - 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

Example	Sum
136 + 12	148
172 + 12	184
188 + 12	200
203 + 12	215
239 + 12	251
268 + 12	280
288 + 12	300
307 + 12	319
348 + 12	360
376 + 12	388
388 + 12	400
402 + 12	414
453 + 12	465
485 + 12	497
488 + 12	500
536 + 12	548
578 + 12	590
588 + 12	600
647 + 12	659
688 + 12	700

FAQ

What is 388 + 12?

388 + 12 = 400

How do you check that 388 + 12 = 400?

Subtract one addend from the sum: 400 − 12 = 388, and 400 − 388 = 12. Getting the other addend back means the sum is right.

How many carries are there in 388 + 12?

2 carries: 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.

Is 12 + 388 the same as 388 + 12?

Yes. Addition is commutative, so both give 400; the column looks the same with either number on top.

See Also