(1) 2.15×8 0.8×4.25 18÷0.36 3.36÷9.6 56÷22 14.6×0.04
(2) 0.48×0.05 7.3×1.4 0.12×0.38 12.9÷25 48.96÷0.02 4.554÷1.8
(3) 1.5×2.5 0.32×14 0.08×1.27 45×2.45 83.4÷3 9.84÷24
(4) 4.95÷5 5÷8 0.75×2.07 90.72÷12 0.09×1.7 3.02×2.3
(5)1.4÷0.28 12.6÷0.42 3.81÷7 0.45÷18 2.7×0.3 0.25×0.12
(6) 3.27÷8.5 33÷1.9 9.68÷5.2 49÷24 246.4÷13 32÷4.2
(7) 2.18÷0.25 0.15÷0.08 80.5÷0.5 90.72÷12 3.56÷0.11 4.51×0.08
(8) 0.036÷0.24 1.2÷1. 6.5×2.05 0.31×2.4 1.8×0.25 0.705÷0.94
(9) 4.2×5.5×1.2 4.6×45-1.08 2.95×0.2×3.4
0.25×4.78×4 3.4×9+3.4 4.3+2.7×5.7
(10) 4.6×102 2.79×2.5×0.4 1.25×(8+0.8 ) 0.8×3.9×1.25 1.25×11×0.8 3.6×7.1+3.6×2.9