349 x 2 =
7 x 2 +1 + 21 =
7 x 5 + 3 - 2 =
783 - 100 +15 =
36
10 x 3 +27=
698
100 : 2 +7 =
23 + 23 +11 =
57
1000 - 310 + 8 =
7 x 1 + 3 + 26 =
