Addition with Regrouping: 83 + 17

Addition with Regrouping Calculator

What is 83 + 17?

Answer

83 + 17 =

100

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

83 + 17 in a column. Carries are the small circled digits above the columns.
		1carry	1carry
			8	3
	+		1	7
		1	0	0

Column by column: 83 + 17

Ones: 3 + 7 = 10 — write 0, carry 1.
Tens: 8 + 1 + 1 = 10 — write 0, carry 1.
Hundreds: the carried 1 — write 1.

83 + 17 = 100

Second check: 100 − 83 = 17

Similar examples to practise

Related Calculations

100 − 17 = 83 - 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 17

Example	Sum
54 + 17	71
58 + 17	75
63 + 17	80
65 + 17	82
67 + 17	84
69 + 17	86
71 + 17	88
74 + 17	91
76 + 17	93
78 + 17	95
83 + 17	100
85 + 17	102
89 + 17	106
92 + 17	109
94 + 17	111
98 + 17	115
105 + 17	122
136 + 17	153
172 + 17	189
183 + 17	200

FAQ

What is 83 + 17?

83 + 17 = 100

How do you check that 83 + 17 = 100?

Subtract one addend from the sum: 100 − 17 = 83, and 100 − 83 = 17. Getting the other addend back means the sum is right.

How many carries are there in 83 + 17?

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 17 + 83 the same as 83 + 17?

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

See Also