Addition with Regrouping: 64 + 36

Addition with Regrouping Calculator

What is 64 + 36?

Answer

64 + 36 =

100

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

64 + 36 in a column. Carries are the small circled digits above the columns.
		1carry	1carry
			6	4
	+		3	6
		1	0	0

Column by column: 64 + 36

Ones: 4 + 6 = 10 — write 0, carry 1.
Tens: 6 + 3 + 1 = 10 — write 0, carry 1.
Hundreds: the carried 1 — write 1.

64 + 36 = 100

Second check: 100 − 64 = 36

Similar examples to practise

Related Calculations

100 − 36 = 64 - 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 36

Example	Sum
36 + 36	72
39 + 36	75
41 + 36	77
45 + 36	81
47 + 36	83
52 + 36	88
54 + 36	90
58 + 36	94
63 + 36	99
64 + 36	100
65 + 36	101
67 + 36	103
69 + 36	105
71 + 36	107
74 + 36	110
76 + 36	112
78 + 36	114
83 + 36	119
85 + 36	121
89 + 36	125

FAQ

What is 64 + 36?

64 + 36 = 100

How do you check that 64 + 36 = 100?

Subtract one addend from the sum: 100 − 36 = 64, and 100 − 64 = 36. Getting the other addend back means the sum is right.

How many carries are there in 64 + 36?

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 36 + 64 the same as 64 + 36?

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

See Also