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Media > TDT > Mental computation > MC_GT_T1_E6_fig2

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MC_GT_T1_E6_fig2

MC_GT_T1_E6_fig2

Number lines for 'change unknown' problems.
Material from NZ Maths website published by the New Zealand Ministry of Education. Reproduced with permission from the New Zealand Ministry of Education © Crown.

First number line showing jump from 74 to 135. Second number line showing jump from 218 to 153.