86-37+455 280-7×9 (343-295)÷8
339+84×6 (128-56)÷9
86 - 26 =
47 + 32 =
360 - 80 =
4× 50 =
70× 0 =
500× 6 =
296 + 309 =
702 - 498 =
395× 4
586-(371+129)
398+81÷9
(311-146)×6
100-31+322 (190-120)×4 328+23×5
20+54-15
56÷(18-11)
49+36÷9
4×(281-262)
963-23×4
650-(360-180)