Thursday, 31 May 2018

we are learning to subtract tens.
 

12-9=3
(12 -10) 2+1=3


                                  26-9=17
                       (26-10) 16+1=17



145-9=136
(145-10) 135+1=136



256-29
(256-30) 226+1=227



375-19=
(375-20) 355+1=356

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