如题所述
第1个回答 2015-05-17
原式=4×2.5×19
=10×19
=190
原式=8.32×(101-1)
=8.32×100
=832
原式=5/6 -(3/20+9/20)
=5/6-12/20
=5/6-3/5
=25/30-18/30
=7/30
原式=24×7/3+24×7/4
=56+42
=98
=10×19
=190
原式=8.32×(101-1)
=8.32×100
=832
原式=5/6 -(3/20+9/20)
=5/6-12/20
=5/6-3/5
=25/30-18/30
=7/30
原式=24×7/3+24×7/4
=56+42
=98
第2个回答 2015-05-17
(5.6-1.6)x19x2.5
=4x2.5x19
=10x19
=190
8.32x101-8.32
=8.32x(101-1)
=8.32x100
=832
5/6-(0.15+9/20)
=5/6-(0.15+0.45)
=5/6-0.6
=25/30-18/30
=7/30
24除以3/7+24除以4/7
=24除以(3/7+4/7)
=24除以1
=24
=4x2.5x19
=10x19
=190
8.32x101-8.32
=8.32x(101-1)
=8.32x100
=832
5/6-(0.15+9/20)
=5/6-(0.15+0.45)
=5/6-0.6
=25/30-18/30
=7/30
24除以3/7+24除以4/7
=24除以(3/7+4/7)
=24除以1
=24
第3个回答 2015-05-17
追答
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