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Media > TDT > Mental computation > MC_GT_T1_E5_A1_fig1

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MC_GT_T1_E5_A1_fig1

MC_GT_T1_E5_A1_fig1

Screen grab from L112 The difference bar: generate hard differences.
Source: © Education Services Australia, 2011.

Problem of 62 minus 28, with a diagrammatic representation of 28 added to 30 to give 58, leaving 4 to reach 62.