Addition with Regrouping: 98 + 23

Addition with Regrouping Calculator

What is 98 + 23?

Answer

98 + 23 =

121

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

98 + 23 in a column. Carries are the small circled digits above the columns.
		1carry	1carry
			9	8
	+		2	3
		1	2	1

Column by column: 98 + 23

Ones: 8 + 3 = 11 — write 1, carry 1.
Tens: 9 + 2 + 1 = 12 — write 2, carry 1.
Hundreds: the carried 1 — write 1.

98 + 23 = 121

Second check: 121 − 98 = 23

Similar examples to practise

Related Calculations

121 − 23 = 98 - 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 23

Example	Sum
71 + 23	94
74 + 23	97
76 + 23	99
77 + 23	100
78 + 23	101
83 + 23	106
85 + 23	108
89 + 23	112
92 + 23	115
94 + 23	117
98 + 23	121
105 + 23	128
136 + 23	159
172 + 23	195
177 + 23	200
203 + 23	226
239 + 23	262
268 + 23	291
277 + 23	300
307 + 23	330

FAQ

What is 98 + 23?

98 + 23 = 121

How do you check that 98 + 23 = 121?

Subtract one addend from the sum: 121 − 23 = 98, and 121 − 98 = 23. Getting the other addend back means the sum is right.

How many carries are there in 98 + 23?

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 23 + 98 the same as 98 + 23?

Yes. Addition is commutative, so both give 121; the column looks the same with either number on top.

See Also