TheThe tens positions are equal and the sum of the ones positions is 10.
(Multiplication)
Fast calculation methods
MO English ver. top > fast calculation methods > The tens positions are equal and the sum of the ones positions is 10.(Multiplication)
The tens positions are equal and the sum of the ones positions is 10. (Multiplication) |
|
→ Answer | |
Manabu-Oshieru.com (Japanese ver.) - English ver. |
|
Copyright (C) 2015 Manabu-Oshieru.com All Rights Reserved. |