Addition with Regrouping: 172 + 83

Addition with Regrouping Calculator

What is 172 + 83?

Answer

172 + 83 =

255

With regrouping: 1 carry — into the hundreds

172 + 83 in a column. Carries are the small circled digits above the columns.
		1carry
		1	7	2
	+		8	3
		2	5	5

Column by column: 172 + 83

Ones: 2 + 3 = 5 — write 5.
Tens: 7 + 8 = 15 — write 5, carry 1.
Hundreds: 1 + 1 = 2 — write 2.

172 + 83 = 255

Second check: 255 − 172 = 83

Similar examples to practise

Related Calculations

255 − 83 = 172 - 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 83

Example	Sum
83 + 83	166
85 + 83	168
89 + 83	172
92 + 83	175
94 + 83	177
98 + 83	181
105 + 83	188
117 + 83	200
136 + 83	219
172 + 83	255
203 + 83	286
217 + 83	300
239 + 83	322
268 + 83	351
307 + 83	390
317 + 83	400
348 + 83	431
376 + 83	459
402 + 83	485
417 + 83	500

FAQ

What is 172 + 83?

172 + 83 = 255

How do you check that 172 + 83 = 255?

Subtract one addend from the sum: 255 − 83 = 172, and 255 − 172 = 83. Getting the other addend back means the sum is right.

How many carries are there in 172 + 83?

1 carry: 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 83 + 172 the same as 172 + 83?

Yes. Addition is commutative, so both give 255; the column looks the same with either number on top.

See Also