264+284=
548
7x9=
63
5+x=13
x=?
x=8
858-759=
99
81÷9=
9
32-y=25
y=?
y=7
1542+5420=
6962
67x9=
603
8793+1256=
10049
844÷4=
211
9727-8372=
1355
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