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Media > TDT > Mental computation > MC_GT_T1_E3_A1_fig1

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MC_GT_T1_E3_A1_fig1

MC_GT_T1_E3_A1_fig1

Screen grab from L92 The part-adder: make your own hard sums.
Source: © Education Services Australia, 2011.

Problem of 60 plus 40, broken into 60 plus four lots of 10, with a diagrammatic representation.