
简算,急急急!
2个回答
展开全部
47.5-(0.6+6.4+0.32)
=47.5-(7+0.32)
=47.5-7.32
=40.18
1230÷(28*3/56)
=1230÷3/2
=1230*2/3
=410*2
=820
=47.5-(7+0.32)
=47.5-7.32
=40.18
1230÷(28*3/56)
=1230÷3/2
=1230*2/3
=410*2
=820
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