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Mental Maths

Mental Maths : Calculate what must be added to a two digit to make next multiple of 10.

 

Monday

Can you see a pattern?  0+-__ = 10   1+ __ = 10    2+ __ = 10   3+ __ = 10   4+ __ = 10                                     5+__ = 10   6+ __= 10    7+ __ = 10    8+ __ =10   9+__ + 10                                      10+ __ = 10  

 

Now try these     1 0+__ = 20   11+ __ = 20    12+ __ = 20   13+ __ = 20   14+ __ = 20                          15+__ = 20    16+ __= 20     1 7+ __ = 20   18+ __ 20    1 9+__ + 20                            20+ __ = 20     

Tuesday

Can you see the pattern?     2 0+__ = 30   21+ __ = 30    22+ __ = 30   23+ __ = 30                                                                  24+ __ = 30   25+__ = 30     26+ __= 30   2 7+ __ = 30                                                28+ __ 30    29+__ + 30   30+ __ = 30

 

Wednesday

Can you see the pattern?     3 0+__ = 40   32+ __ = 40    34+ __ = 40   36+ __ = 40                                                                  38+ __ = 40   40+__ = 50     42+ __= 50   44+ __ = 50                                                46+ __ = 50    48+__ = 50   50+ __ = 60

Thursday

Can you see the pattern?     3 1+__ = 40   33+ __ = 40    35+ __ = 40   37+ __ = 40                                                                  39+ __ = 40   41+__ = 50     43+ __= 50   45+ __ = 50                                                47+ __ = 50    49+__ = 50   50+ __ = 60

Friday

Can you see the pattern?     21+__ = 30   25+ __ = 30    27+ __ = 30   23+ __ = 30                                                                   39+ __ = 40   34+__ = 40     33+ __= 40   37+ __ = 40                                                  42+ __ = 50  48+__ = 50     46+ __ = 50   44+ __ = 50

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