Today we have been adding 11, 12, 13, 21, 22 and 23 to a number.  The methods we have been using are for +11 we add 10 then add 1, for +12 we add 10 then add 2, for +13 we add 10 then 3.

 

Do you think you could solve these calculations?

12 + 13 =
34 + 12 =
15 + 11 =
67 + 21 =
44 + 22 =
                                                          98 + 22 =

 

Posted by Mr Boyd on 2 December 2015

Category: Robins

Tags: advert


Comments

Kayden Edwards    3 December 2015

12+13= 25. 34+12= 46. 15+11= 26
67+21= 88. 44+22= 66 98+22=120

I enjoyed measuring and halves and the quarters this week see you tomorrow from Kayden

Bertie Moore   10 December 2015

12+13=25
34+12=46
15+11=26
67+21=88
44+22=66
I enjoyed using the number square and doing these sums, Bertie Moore

Alexander McArthur    11 December 2015

12+13=25
34+12=46
15+11=26
67+21=88
44+22=66

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