On The Double

Double these numbers and write down the answers in the back of your books:

5710121416
333441436062
100153192224288317
7223.968.610.6360.00190.000040

                               

 

 

 

 

 

 

 

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    Answers

     

    5 x 2 =
    10    		7 x 2 =
    14    		10 x 2 =
    20    		12 x 2 =
    24    		14 x 2 =
    28    		16 x 2 =
    32
    33 x 2 =
    66    		34 x 2 =
    68    		41 x 2 =
    82    		43 x 2 =
    86    		60 x 2 =
    120    		62 x 2 =
    124
    100 x 2 =
    200    		153 x 2 =
    306    		192 x 2 =
    384    		224 x 2 =
    448    		288 x 2 =
    576    		317 x 2 =
    634
    7223.9 x 2 =
    14447.8    		68.61 x 2 =
    137.22    		0.636 x 2 =
    1.272    		0.0019 x 2 =
    0.0038    		0.00004 x 2 =
    0.00008    		0 x 2 =
    0

     

    Note to teacher: Doing this activity once with a class helps students develop strategies. It is only when they do this activity a second time that they will have the opportunity to practise those strategies. That is when the learning is consolidated. Click the button above to regenerate another version of this starter from random numbers.