Question

657:90+83*600=
(612237-240037):40=

Answer 1

1. 657:90+83•600=49807,3.
1) 657:90=7,3;
2) 83•600=49800;
3) 7,3+49800=49807,3.

2. (612237-240037):40=9305.
1) 612237-240037=372200;
2) 372200:40=9305.