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Subtraction using Constant Gap Trick — Practice

Rewrite each subtraction as an easy one: slide both numbers up so you take away a ten. The gap (the answer) stays the same.

Example93 − 16 = 97 − 20 = 77
  1. 1.75 − 16 = − =
  2. 2.53 − 38 = − =
  3. 3.72 − 68 = − =
  4. 4.61 − 49 = − =
  5. 5.92 − 47 = − =