72×0.81+10.4 7.06×2.4-5.7 50.4×1.9-1.8
3.76×0.25+25.8 0.75×18÷0.15 2.07÷0.23÷0.45
21.36÷0.8-12.9 7.28+3.2÷2.5 1.08×0.8÷0.27
2.05÷0.82+33.6 44.28÷0.9÷4.1 9.07-22.78÷3.4
2.7×0.8×3.4 12.3×3.1+5.6 4.9×3.2-2.5
36.4-6.4×5.3 (1.8-1.5)×15 9.8×0.6-1.2×1.2
3.87×4+6.13 16-2.54×6 213.6÷0.8÷0.3
16.06÷5.5× 1.7 42×(5.25÷0.25) 6.48+0.12÷10.8
0.6×(2.7-0.9)÷0.24 (9.18÷1.7-5.05)÷0.35
5.4×〔(2.73+1.85)÷2.29〕 (3.6+4.64-1.2)÷4〕×0.1
18.5×0.2÷18.5×0.2 0.4×(1+0.2-1+0.2)÷0.16
65+320÷(20-15) 860-(48+12)×12
(750+240)÷(0.3×100) 25×(40+4)
24.56-(8.2+4.56) 88×99+88
20.5-6.3×3.7 (4.23+6.17)×0.8
0.86×15.7-0.86×14.7 1.2×2+2.4×102
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