口算100题 某：
5x2+25= 34-3x3= 53-2x2=
2x4+17= 3x3+24= 2x4-3=
2x5+35= 42-2x5= 57-4x2=
2x3+22= 2x4-4= 2x3+52=
42-5x2= 53+3x3= 47-2x3=
88-5x2= 34+3x3= 46+2x4=
66-2x4= 43-2x5= 74-5x2=
87+3x3= 68-5x2= 66-2x4=
65-2x2= 58+5x2= 24+2x4=
19+3x2= 28-2x5= 34+2x5=
26+2x3= 42-2x3= 43-3x2=
57+2x3= 58-5x2= 95-5x2=
69+2x4= 75-2x3= 84-2x5=
18+3x3= 27-3x2= 29+2x2=
34+2x3= 46-2x2= 52-5x2=
61-4x2= 73-2x2= 55+2x3=
67-2x4= 29+5x2= 34-3x3=
23+2x5= 42-2x5= 53-5x2=
42+3x2= 55-2x5= 62-2x3=
63-2x2= 75-5x2= 24-5x2=
23+2x5= 42-2x5= 53-5x2=
42+3x2= 55-2x5= 62-2x3=
63-2x2= 75-5x2= 24-5x2=
52+2x3= 64-2x3= 52+3x2=
44-2x2= 42-4x2= 46+2x2=
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