Addition with Regrouping: 74 + 28

Addition with Regrouping Calculator
First addend
Second addend

What is 74 + 28?

Answer

74 + 28 =
102

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

74 + 28 in a column. Carries are the small circled digits above the columns.
1carry1carry
7 4
+28
102

Column by column: 74 + 28

  • Ones: 4 + 8 = 12 — write 2, carry 1.
  • Tens: 7 + 2 + 1 = 10 — write 0, carry 1.
  • Hundreds: the carried 1 — write 1.

74 + 28 = 102

Second check: 102 − 74 = 28

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69 + 2897
71 + 2899
72 + 28100
74 + 28102
76 + 28104
78 + 28106
83 + 28111
85 + 28113
89 + 28117
92 + 28120
94 + 28122
98 + 28126
105 + 28133

FAQ

What is 74 + 28?

74 + 28 = 102

How do you check that 74 + 28 = 102?

Subtract one addend from the sum: 102 − 28 = 74, and 102 − 74 = 28. Getting the other addend back means the sum is right.

How many carries are there in 74 + 28?

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 28 + 74 the same as 74 + 28?

Yes. Addition is commutative, so both give 102; the column looks the same with either number on top.

See Also