1
(1)(457+28×14)×5 (2)(480+20×4)÷20 (3)180+60÷5×6
(4)1721-36×(432-408) (5)420-(25+15)×4 (6)8×(28+18÷15)
(7)(230-215÷5)×16 (8)(160+880÷20)×4 (9)(90-21×2)÷12
(10)70+(750-65×11) (11)(800÷20+36)×12 (12)360÷9÷8+16
(13)1080-3500÷50+346 (14)(300÷15-11)×12 (15) 3500-(124+76)×16
2
(16)480-(80+20)÷4 (17) (24+36)÷12×14 (18)(86-24)×5÷31
(19)(60-12×4)×15 (20)720+320÷16×7 (21)(328+198÷9)÷70
(22)65+260÷4×98 (23)(73+22)÷(72-67) (24)36×5÷(27-17)
(25)3200÷(1280-72×15) (26)(457+28×14)×5 (27)280÷(240-8×25)
(28)30+(96-24×3)×6 (29)350-5×3÷5 (30) (365-328)×(73-55)
3
(58+37)÷(64-9×5) 19+(253-22)÷21 (23+23)×24-597
85+14×(14+208÷26) 21+(327-23)÷19 539-513÷(378÷14)
(110-10)÷10-10 304-275÷(275÷25) (70+10)÷(18-10)
44+15×16-32 (10-100÷10)×11 (53-588÷21)×36
(247+18)×27÷25 36-720÷(360÷18) (70+203÷7)×28
4
(60+10)÷(17-10) 17+(233-43)÷10 22+(374-10)÷26
(245-11)÷18-11 22-(10+100÷10) (252-14)÷17-10
(346-10)÷16-12 215-198÷(121÷11) (45-651÷21)×33
(714-12)÷27-19 14+(21-19)×14 736÷(43-20)×23
(227+11)÷(31-14) (31-154÷11)×12 (1369-37)÷37-32
5
160÷(22-12)×22 (438-39)÷21-12 (20+18)×11-239
(58+370)÷(64-45) (58+37)÷(64-9×5) 95÷(64-45)
(540-360)÷(18×5) 360÷(60÷2) (360÷12-10)×20
(24+36)÷12×14 (86-24)×5÷31 (365-328)×(73-55)
765÷(491-476) 75+720÷(42-27) (252+144)÷(307-271)
6
93×(515-428) (69+21)×(72÷8) (16+20)×35
(126-87)×12÷26 234÷(205-199) (75+315)÷(35-20)
(121-92)×12÷6 178-(83+360÷60) (420+60)÷(275-245)
460÷(30-21÷3) (49+21)×(48÷8) 45+120÷(30-6)
420÷[(205-198)×4] (84-4) ×9÷6 (65+250)÷(28-13)
7
(124-85) ×12÷26 (270-180) ÷30 (59+31)×(96÷8)
1024-(680+640÷16) 4800-24×(532÷38) 96×(328-875÷25)
75+360÷(20-5) (75+360)÷(20-5) 12+(40÷5×24)
720÷(15-3×2) 3889-(108+41)×5 (800+200÷50)×3
640÷(80-20×3) (365-328)×(73-55) 672÷(23×25-547)
8
48÷(2+6) (58+37)÷(64-9×5) 95÷(64-45)
85+14×(14+208÷26) 21+(327-23)÷19 539-513÷(378÷14)
19+(253-22)÷21 (23+23)×24-597 (110-10)÷10-10
304-275÷(275÷25) (70+10)÷(18-10) (10-100÷10)×11
(53-588÷21)×36 (60+10)÷(17-10) 17+(233-43)÷10