Addition with Regrouping: 45 + 36

Addition with Regrouping Calculator

What is 45 + 36?

Answer

45 + 36 =

81

With regrouping: 1 carry — into the tens

45 + 36 in a column. Carries are the small circled digits above the columns.
		1carry
		4	5
	+	3	6
		8	1

Column by column: 45 + 36

Ones: 5 + 6 = 11 — write 1, carry 1.
Tens: 4 + 3 + 1 = 8 — write 8.

45 + 36 = 81

Second check: 81 − 45 = 36

Similar examples to practise

Related Calculations

81 − 36 = 45 - 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 45 + 36?

45 + 36 = 81

How do you check that 45 + 36 = 81?

Subtract one addend from the sum: 81 − 36 = 45, and 81 − 45 = 36. Getting the other addend back means the sum is right.

How many carries are there in 45 + 36?

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 36 + 45 the same as 45 + 36?

Yes. Addition is commutative, so both give 81; the column looks the same with either number on top.

See Also