脫式計算下面各題
(注:先看運算順序,再考慮能否簡便計算)
39.05÷7.1-2.1 7.32÷(4.32-0.64)
38.83÷4.4-2.4 39.78÷ 4.5÷0.4
14.4+15.6÷1.2 8.8+7.2÷1.6
9.728÷3.2+6.8 (30.6+1.08)÷0.9
(2.65+2.77)÷(1.98-0.98) 3.7×91.6+6.3×91.6
0.45×12×0.2 6.2×2.1-2.1×2.8
2.8×1.43+0.57 10-6.06+8.5
6×0.25×1.8 144÷3.6+27.2
0.87×3.16+4.64 6.8×0.75÷0.5
13.75÷0.125–2.75 53+23.4÷7.2
2.881÷0.43-0.24×3.5 28-(3.4+1.25×2.4)
(31.8+3.2×4)÷5 31.5×4÷(6+3)
0.64×25×7.8+2.2 2÷2.5+2.5÷2
194-64.8÷1.8×0.9 36.72÷4.25×9.9
5180-705×6 24÷2.4-2.5×0.8
3.416÷(0.016×35) 4.5÷1.8-0.9
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