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Additional problems in the first volume of fourth grade mathematics
1, English: 92×3+88×2-89×4 = 96 points.

2. The distance difference when Party A and Party B meet is 40× 2 = 80km.

Meeting time: 80÷(96-88)= 10 hour.

Distance between the two places:10× (96+88) =1840km.

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