简算.3.78+(6.22+4.72) 18.73+3.85-2.73 45.6-(83.7-78.8)
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简算.3.78+(6.22+4.72) 18.73+3.85-2.73 45.6-(83.7-78.8)
3.78+(6.22+4.72)
=3.78+6.22+4.72
=10+4.72
=14.72
18.73+3.85-2.73
=18.73-2.73+3.85
=16+3.85
=19.85
45.6-(83.7-78.8)
=45.6-4.9
=45.6-5+0.1
=40.6+0.1
=40.7
=3.78+6.22+4.72
=10+4.72
=14.72
18.73+3.85-2.73
=18.73-2.73+3.85
=16+3.85
=19.85
45.6-(83.7-78.8)
=45.6-4.9
=45.6-5+0.1
=40.6+0.1
=40.7
简算.3.78+(6.22+4.72) 18.73+3.85-2.73 45.6-(83.7-78.8)
45.6-(83.7-78.8)简便计算,
45.6-(83.7-78.8)= 梯等式,简便运算
45.6-(83.7-78.5)递等式简算计算
是否可以用简便方法计算:45.6-(83.7-78.5)
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