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Interactive Portal-Book of Self-Development Methods

Arithmetic ability: level three: mental subtraction of four-digit numbers.

Return to exercise selection

7910 - 3416 =

8481 - 2201 =

7812 - 6398 =

7831 - 5413 =

7253 - 3086 =

9590 - 3140 =

8471 - 4947 =

9718 - 6449 =

6825 - 3384 =

6799 - 5558 =

Return to exercise selection

© Oleg Akvan
metodorf.com



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