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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

3845 - 3005 =

8170 - 6818 =

9390 - 7293 =

4371 - 1719 =

9238 - 1853 =

9222 - 7306 =

8657 - 2959 =

9577 - 5824 =

7180 - 1219 =

3808 - 3264 =

Return to exercise selection

© Oleg Akvan
metodorf.com



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