怎样简便怎样计算
70.8-1.25-8.7545.01+6.1+0.99+2.95.6+2.7+4.428.13+9.4-18.13...
70.8-1.25-8.75 45.01+6.1+0.99+2.9 5.6+2.7+4.4 28.13+9.4-18.13
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70.8-1.25-8.75
=70.8-(1.25+8.75)
=70.8-10
=60.8
45.01+6.1+0.99+2.9
=(45.01+0.99)+(6.1+2.9)
=46+9
=55
5.6+2.7+4.4
=（5.6+4.4)+2.7
=10+2.7
=12.7
28.13+9.4-18.13
=28.13-18.13+9.4
=10+9.4
=19.4
=70.8-(1.25+8.75)
=70.8-10
=60.8
45.01+6.1+0.99+2.9
=(45.01+0.99)+(6.1+2.9)
=46+9
=55
5.6+2.7+4.4
=（5.6+4.4)+2.7
=10+2.7
=12.7
28.13+9.4-18.13
=28.13-18.13+9.4
=10+9.4
=19.4
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