Addition with Regrouping: 172 + 98

Addition with Regrouping Calculator

What is 172 + 98?

Answer

172 + 98 =

270

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

172 + 98 in a column. Carries are the small circled digits above the columns.
		1carry	1carry
		1	7	2
	+		9	8
		2	7	0

Column by column: 172 + 98

Ones: 2 + 8 = 10 — write 0, carry 1.
Tens: 7 + 9 + 1 = 17 — write 7, carry 1.
Hundreds: 1 + 1 = 2 — write 2.

172 + 98 = 270

Second check: 270 − 172 = 98

Similar examples to practise

Related Calculations

270 − 98 = 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 98

Example	Sum
98 + 98	196
105 + 98	203
136 + 98	234
172 + 98	270
203 + 98	301
239 + 98	337
268 + 98	366
307 + 98	405
348 + 98	446
376 + 98	474
402 + 98	500
453 + 98	551
485 + 98	583
536 + 98	634
578 + 98	676
647 + 98	745

FAQ

What is 172 + 98?

172 + 98 = 270

How do you check that 172 + 98 = 270?

Subtract one addend from the sum: 270 − 98 = 172, and 270 − 172 = 98. Getting the other addend back means the sum is right.

How many carries are there in 172 + 98?

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 98 + 172 the same as 172 + 98?

Yes. Addition is commutative, so both give 270; the column looks the same with either number on top.

See Also