3+34
37
4a-7a
-3a
4a×4a
16a2
45a÷5
9a
3/3×6/2
3
32+45
77
56a-7a
49a
5×4a
20a
45b÷5b
9
75÷5
15
35+15
50
48-28
20
4b×3b
12b2
54a÷6
24÷8
36+4
40
Press F11 Select menu option View > Enter Fullscreen for full-screen mode