On the news, the doctor said that freshmen can't do math problems. Who can tell me how to solve these five problems?

Is that what you mean?

Pay attention to the+sign in the first one, which actually means that you should fill in the sum or difference of the corresponding numbers in the first row and the first column.

Triangle =5-2=3

Circle =3+3=6 (it should be that student's fault)

Square =7+2=9

Pentagram =7+3= 10

Rectangular =8-3=5

Diamond =5+2=7

Which is better, solving problems or 126?

At least. At most. No more than. What do you mean by not less than in mathematics?

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