Subtraction with Regrouping: 64 − 19

Subtraction with Regrouping Calculator
Minuend
Subtrahend

What is 64 − 19?

Answer

64 − 19 =
45

With regrouping: 1 borrow — from the tens

64 − 19 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.
5+10
6(was 6, now 5)4 (was 4, now 14)
−19
45

Column by column: 64 − 19

  • Ones: 4 is less than 9 — borrow 1 ten: tens 6 → 5; 14 − 9 = 5 — write 5.
  • Tens: after borrowing, 5; 5 − 1 = 4 — write 4.

64 − 19 = 45

Second check: 64 − 45 = 19

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Column subtractions of 19

ExampleDifference
38 − 1919
42 − 1923
45 − 1926
47 − 1928
53 − 1934
55 − 1936
58 − 1939
60 − 1941
64 − 1945
66 − 1947
71 − 1952
73 − 1954
77 − 1958
82 − 1963
84 − 1965
86 − 1967
88 − 1969
90 − 1971
93 − 1974
95 − 1976

FAQ

What is 64 − 19?

64 − 19 = 45

How do you check that 64 − 19 = 45?

Add the difference and the subtrahend: 45 + 19 = 64. Getting the minuend back means the difference is right.

How many times do you borrow in 64 − 19?

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

See Also