Question

400-400÷100+40×(852÷4-64×3-99÷9)+889÷7+69=; (70+75×6-48÷3÷4-89)×5+856÷8×6+25=; (91-6×7)÷(41+18÷6-37)×60÷10+2058=;

Answer 1

400-400:100+40x(852:4-64x3-99:9)+889:7+69=
400-4+40x(213-192-11)+127+69=
396+40x10+196=
396+400+196=
796+196=992

(70+75x6-48:3:4-89)x5+856:8x6+25=
(70+450-16:4-89)x5+107x6+25=
(520-4-89)x5+642+25=
427x5+667=
2135+667=2802

(91-6x7):(41+18:6-37)x60:10+2058=
(91-42):(41+3-37)x6+2058=
49:7x6+2058=
7x6+2058=
42+2058=2100