Primary school textbooks fully understand the mathematical answers in the second volume of the fifth grade - Training Enrollment Network

Primary school textbooks fully understand the mathematical answers in the second volume of the fifth grade

Now use the score to convert the real score: 9 109 10 17.

5 - = - 1 - = -

20 20 7 7

Then directly calculate:109-{17+4}+2/3 = 913.

-

105

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