Addition with Regrouping: 89 + 89

Addition with Regrouping Calculator

What is 89 + 89?

Answer

89 + 89 =

178

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

89 + 89 in a column. Carries are the small circled digits above the columns.
		1carry	1carry
			8	9
	+		8	9
		1	7	8

Column by column: 89 + 89

Ones: 9 + 9 = 18 — write 8, carry 1.
Tens: 8 + 8 + 1 = 17 — write 7, carry 1.
Hundreds: the carried 1 — write 1.

89 + 89 = 178

Similar examples to practise

Related Calculations

178 − 89 = 89 - 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 89

Example	Sum
89 + 89	178
92 + 89	181
94 + 89	183
98 + 89	187
105 + 89	194
111 + 89	200
136 + 89	225
172 + 89	261
203 + 89	292
211 + 89	300
239 + 89	328
268 + 89	357
307 + 89	396
348 + 89	437
376 + 89	465
402 + 89	491
453 + 89	542
485 + 89	574
536 + 89	625
578 + 89	667

FAQ

What is 89 + 89?

89 + 89 = 178

How do you check that 89 + 89 = 178?

Subtract one addend from the sum: 178 − 89 = 89. Getting the other addend back means the sum is right.

How many carries are there in 89 + 89?

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.

See Also