用简便方法计算。14.82+8.46-5.46（6.25+3.84）-（2.5+1.84）（用简便方法计算。14.82+8.46-5.46（6.25+3.84）-（2.5+1.84）（4.2+16.8）÷0.70.8÷0.32×499.5-46.30.4×9.5×25÷1.913.2÷8.8×0.815.84-（9.9+5.84）求各位学霸

Question

用简便方法计算。 14.82+8.46-5.46 （6.25+3.84）-（2.5+1.84） （
用简便方法计算。
14.82+8.46-5.46
（6.25+3.84）-（2.5+1.84）
（4.2+16.8）÷0.7
0.8÷0.32×4
99.5-46.3
0.4×9.5×25÷1.9
13.2÷8.8×0.8
15.84-（9.9+5.84）
求各位学霸帮帮忙

Answer 1

14.82+8.46-5.46
=14.82+(8.46-5.46)
=14.82+3
=17.82
(6.25+3.84)-(2.5+1.84)
=6.25+(3.84-1.84)-2.5
=6.25+2-2.5
=8.25-2.5
=5.75
（4.2+16.8）÷0.7
=21×10/7
=30
0.8÷0.32×4
=0.8×4÷0.32
=3.2÷0.32
=10
99.5-46.3
=(100-0.5)-46.3
=100-(0.5+46.3)
=100-46.8
=53.2
0.4×9.5×25÷1.9
=(0.4×25)×(9.5÷1.9)
=10×5
=50
13.2÷8.8×0.8
=13.2×(0.8÷8.8)
=13.2×1/11
=1.2
15.84-（9.9+5.84）
=15.84-5.84-9.9
=10-9.9
=0.1