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Tohaina

1400-10^{2}-50=0
Whakareatia te 70 ki te 20, ka 1400.
1400-100-50=0
Tātaihia te 10 mā te pū o 2, kia riro ko 100.
1300-50=0
Tangohia te 100 i te 1400, ka 1300.
1250=0
Tangohia te 50 i te 1300, ka 1250.
\text{false}
Whakatauritea te 1250 me te 0.