Page 23 - Thanks Donation to EBOOK 123 easy teaching math A+ ok
P. 23

Addition
                                                                                                                                                           Addition
    123 EASY TEACHING
    123 EASY TEACHING



       12+1               10+2+  1                                                                                                10+3



       12+2               10+2+  2                                                                                                10+4



       12+3               10+2+  3                                                                                                10+5



       12+4               10+2+  4                                                                                                10+6



       12+5               10+2+  5                                                                                                 10+7



       12+6               10+2+  6                        10+  2+6                                                                 10+8



       12+7               10+2+  7                        10+  2+7                                                                 10+9



       12+8               10+2+  8                        10+  2+8                                                                 10+10



       12+9               11+1+  9                        11+  1+9                                                                 11+10



       12+10              10+2+ 10                        10+  10+2                                                                20+2



       12+11              10+2+ 10+1                  10+10+  2+1                          10+10+  3                               20+3



       12+12              10+2+ 10+2                   10+10+  2+2                         10+10+  4                               20+4





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