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Media > TDT > Mental computation > MC_GT_T1_E5_A1_fig2

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MC_GT_T1_E5_A1_fig2

MC_GT_T1_E5_A1_fig2

Screen grab from L110 The difference bar: make your own hard subtractions.
Source: © Education Services Australia, 2011.

Problem of 62 minus 28, with a diagrammatic representation of 2 added to 28 to give 30, leaving 32 plus the remaining 2 to reach 64.