Addition with Regrouping: 88 + 12

Addition with Regrouping Calculator

What is 88 + 12?

Answer

88 + 12 =

100

The sum is longer than the addends: 2 carries — into the tens and the hundreds; the last one makes a new digit

88 + 12 in a column. Carries are the small circled digits above the columns.
		1carry	1carry
			8	8
	+		1	2
		1	0	0

Column by column: 88 + 12

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

88 + 12 = 100

Second check: 100 − 88 = 12

Similar examples to practise

Related Calculations

100 − 12 = 88 - 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
63 + 12	75
65 + 12	77
67 + 12	79
69 + 12	81
71 + 12	83
74 + 12	86
76 + 12	88
78 + 12	90
83 + 12	95
85 + 12	97
88 + 12	100
89 + 12	101
92 + 12	104
94 + 12	106
98 + 12	110
105 + 12	117
136 + 12	148
172 + 12	184
188 + 12	200
203 + 12	215

FAQ

What is 88 + 12?

88 + 12 = 100

How do you check that 88 + 12 = 100?

Subtract one addend from the sum: 100 − 12 = 88, and 100 − 88 = 12. Getting the other addend back means the sum is right.

How many carries are there in 88 + 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 + 88 the same as 88 + 12?

Yes. Addition is commutative, so both give 100; the column looks the same with either number on top.

See Also