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Addition with Regrouping: 688 + 12

Addition with Regrouping Calculator

What is 688 + 12?

Answer

688 + 12 =

700

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

688 + 12 in a column. Carries are the small circled digits above the columns.
		1carry	1carry
		6	8	8
	+		1	2
		7	0	0

Column by column: 688 + 12

Ones: 8 + 2 = 10 — write 0, carry 1.
Tens: 8 + 1 + 1 = 10 — write 0, carry 1.
Hundreds: 6 + 1 = 7 — write 7.

688 + 12 = 700

Second check: 700 − 688 = 12

Similar examples to practise

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Related Calculations

700 − 12 = 688 - 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

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688 + 12 = 700 - Addition with Regrouping. 688 + 12 = 700. Addition with regrouping step by step: 2 carries, every digit of the sum and a subtraction check.

https://calculat.io/en/number/long-addition/688--12/generated.jpg

Column additions with 12

Example	Sum
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
788 + 12	800
888 + 12	900
988 + 12	1,000
1,988 + 12	2,000
4,988 + 12	5,000
9,988 + 12	10,000

Recalculate with different values ↑

FAQ

What is 688 + 12?

688 + 12 = 700

How do you check that 688 + 12 = 700?

Subtract one addend from the sum: 700 − 12 = 688, and 700 − 688 = 12. Getting the other addend back means the sum is right.

How many carries are there in 688 + 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 + 688 the same as 688 + 12?

Yes. Addition is commutative, so both give 700; the column looks the same with either number on top.

See Also