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Media > TDT > Mental computation > MC_GT_T1_E2_A1_fig1

MC_GT_T1_E2_A1_fig1

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Problem is 28 plus 7, broken into 28 plus 2 plus 5 to equal 35.

Screen grab from L91 The part-adder: make your own easy sums.
Source: © Education Services Australia, 2011.

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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.

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