METODORF.COM
Interactive Portal-Book of Self-Development Methods

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

Return to exercise selection

3712 - 2888 =

8193 - 5310 =

7325 - 7084 =

7698 - 3290 =

9878 - 3894 =

6876 - 2667 =

9346 - 5176 =

3407 - 3078 =

7101 - 3036 =

7478 - 6195 =

Return to exercise selection

© Oleg Akvan
metodorf.com




Site Map  |  Aboute us  |  Guest book  |  Feedback  |  Policy