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Media > TDT > Mental computation > MC_GT_T1_E6_fig1

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MC_GT_T1_E6_fig1

MC_GT_T1_E6_fig1

Number line for 'result unknown' problem.
Material from NZ Maths website published by the New Zealand Ministry of Education. Reproduced with permission from the New Zealand Ministry of Education © Crown.

Beginning at 203 then subtracting 80 to reach 123, then 7 to reach the result of 116.