脱式计算 84.7×7－54.7×73.26×0.52+3.26×0.48+7.0587.4×27.6+73.4×87.4－87.4[10－（0.2+6.37÷0.7）]÷0.015.7×1014.2×（12.5－7.5÷0.75）30.8÷[14－(9.85＋1.07)][60－(9.5＋28.9)]÷0.182.881÷0.43－0.24×3.520×[(2.44－1.8)÷0.4＋0.15]28-(3.4+1.25×2.4)2.55×7.1+2.45×7.1777×9+1111×30.8×〔15.5-(3.21+5.79)〕（31.8+3.2×4）÷531.5×4÷(6+3)0.64×25×7.8+2.22÷2.5+2.5÷2194－64.8÷1.8×0.9练习题
36.72÷4.25×9.9
5180－705×6
24÷2.4－2.5×0.8
(4121+2389)÷7
671×15-974
469×12+1492
405×(3213-3189)
3.416÷（0.016×35）
0.8×[(10－6.76)÷1.2]
19.4×6.1×2.35.67×0.2-0.6218.1×0.92+3.930.0430.24+0.8750.4×0.7×0.250.75×102 100-56.230.78+5.436+14.07×0.86+9.12.530.8÷[14－(9.85＋1.07)][60－(9.5＋28.9)]÷0.182.881÷0.43－0.24×3.520×[(2.44－1.8)÷0.4＋0.15]28-(3.4+1.25×2.4)2.55×7.1+2.45×7.1777×9+1111×30.8×〔15.5-(3.21+5.79)〕（31.8+3.2×4）÷531.5×4÷(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
(4121+2389)÷7
671×15-974
469×12+1492
405×(3213-3189)3.416÷（0.016×35）0.8×[(10－6.76)÷1.2]19.4×6.1×2.3 5.67×0.2-0.6218.1×0.92+3.93 0.0430.24+0.8750.4×0.7×0.25 0.75×102 100-56.230.78+5.436+1 4.07×0.86+9.12 30.8÷[14－(9.85＋1.07)][60－(9.5＋28.9)]÷0.182.881÷0.43－0.24×3.520×[(2.44－1.8)÷0.4＋0.15]28-(3.4+1.25×2.4)2.55×7.1+2.45×7.1（31.8+3.2×4）÷5 31.5×4÷(6+3) 19.4×6.1×2.3 5.67×0.2-0.6218.1×0.92+3.930.0430.24+0.8750.4×0.7×0.250.75×102 100-56.23
1.287×304-28350÷27
4600＋5400÷18×12
3．14×13＋3．14×85
8
8
37．73－304－7
11
211
221
0．75 ＋112
3．28 ＋25－1．72＋5
8
58
730．18＋39
20
1．82
