4×109-132 850-236+119 867-(172+198)
9×8+147 302-6×7 (521-465)÷8
910﹣123+277
472﹣72÷8
(245﹣189)÷7
800-124×6 732÷ (74-68) 58×7+485
①200-74+ 157
②55+45×6
③256-26×6
④100-48÷6
⑤5×(120-80)
⑥45÷(35÷7)
65-37+140 (357-294)÷9 765-(246+154)