Double these numbers and write down the answers in the back of your book:
2  6  11  15  16  19 
28  45  51  53  64  67 
219  598  1356  1789  2286  2568 
2.9  0.01  0.056  0.007  0.00009  27.73 
Topics: Starter  Arithmetic
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2 x 2 = 4  6 x 2 = 12  11 x 2 = 22  15 x 2 = 30  16 x 2 = 32  19 x 2 = 38 
28 x 2 = 56  45 x 2 = 90  51 x 2 = 102  53 x 2 = 106  64 x 2 = 128  67 x 2 = 134 
219 x 2 = 438  598 x 2 = 1196  1356 x 2 = 2712  1789 x 2 = 3578  2286 x 2 = 4572  2568 x 2 = 5136 
2.9 x 2 = 5.8  0.01 x 2 = 0.02  0.056 x 2 = 0.112  0.007 x 2 = 0.014  0.00009 x 2 = 0.00018  27.73 x 2 = 55.46 
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