Subtraction with Regrouping: 137 − 39

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 137 − 39?

Answer

137 − 39 =
98

With regrouping: 2 borrows — from the tens and the hundreds

137 − 39 in a column. Above the columns: the values after borrowing — a crossed-out digit is replaced by the number above it; +10 marks a column that received a borrowed ten.
012+10
1(was 1, now 0)3(was 3, now 12)7 (was 7, now 17)
−39
98

Column by column: 137 − 39

  • Ones: 7 is less than 9 — borrow 1 ten: tens 3 → 2; 17 − 9 = 8 — write 8.
  • Tens: after borrowing, 2; 2 is less than 3 — borrow 1 hundred: hundreds 1 → 0; 12 − 3 = 9 — write 9.
  • Hundreds: after borrowing, 0 — a leading zero is not written.

137 − 39 = 98

Second check: 137 − 98 = 39

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Column subtractions of 39

ExampleDifference
108 − 3969
110 − 3971
113 − 3974
115 − 3976
117 − 3978
122 − 3983
124 − 3985
128 − 3989
131 − 3992
133 − 3994
137 − 3998
144 − 39105
175 − 39136
211 − 39172
242 − 39203
278 − 39239
307 − 39268
346 − 39307
387 − 39348
400 − 39361

FAQ

What is 137 − 39?

137 − 39 = 98

How do you check that 137 − 39 = 98?

Add the difference and the subtrahend: 98 + 39 = 137. Getting the minuend back means the difference is right.

How many times do you borrow in 137 − 39?

2 borrows: each time the top digit was smaller than the one below it, 1 was borrowed from the column on the left.

See Also