On The Double

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

248131718
233857758795
107172266358373459
6659.883.970.2220.00290.000050

                               

 

 

 

 

 

 

 

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Keywords: Starter | Arithmetic

  • Y6, Tickhill St. Mary's
  • Tuesday, September 07, 2010
  • "We liked this: it wasn't too hard."

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This starter has scored a mean of 3.7 out of 5 based on 25 votes.

 

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Answers

 

2 x 2 =
4
4 x 2 =
8
8 x 2 =
16
13 x 2 =
26
17 x 2 =
34
18 x 2 =
36
23 x 2 =
46
38 x 2 =
76
57 x 2 =
114
75 x 2 =
150
87 x 2 =
174
95 x 2 =
190
107 x 2 =
214
172 x 2 =
344
266 x 2 =
532
358 x 2 =
716
373 x 2 =
746
459 x 2 =
918
6659.8 x 2 =
13319.6
83.97 x 2 =
167.94
0.222 x 2 =
0.444
0.0029 x 2 =
0.0058
0.00005 x 2 =
0.0001
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.