27 x 1☐ = 40☐
634 x 5☐ = 3☐236
5☐3 x ☐74 = 97☐62
☐2 x 4☐4 = 91☐8
☐13 x 1☐2 = 62☐86
1☐13 x ☐79 = 94☐927
Each red box represents a missing digit.
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27 x 15 = 405
634 x 54 = 34236
563 x 174 = 97962
22 x 414 = 9108
513 x 122 = 62586
1213 x 779 = 944927
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.
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The 1st December is the date to start opening the doors of the 2020 Mathematics Advent Calendar.