26×6-110 15×7+85×7 (46-20)×30-90
(40-4)×25 2400÷80-14×2 108-(83+360÷60)
(420+48)÷(375-345) 290-(34×3+99) 142-54÷9+14
16×76-76×6 99×53+53 450-2×(16+9)
245-(45+39) 125×(8×4)×5 41×25-25
420÷(205-198)×4 460÷(29-18÷3) (960-400)÷70
45+240÷12 124+78+22 100-35-25
(140-70)×54 63+84×2÷42 490÷7+24×5