问题
解答题
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答案
(1)0.8×0.94×12.5
=0.8×12.5×0.94
=10×0.94
=9.4;
(2)0.68×99+0.68
=0.68×(99+1)
=0.68×100
=68;
(3)0.48×8.5+0.48×1.5
=0.48×(8.5+1.5)
=0.48×10
=4.8;
(4)18.6×1.37-18.6×0.37
=18.6×(1.37-0.37)
=18.6×1
=18.6;
(5)18.8×101-18.8
=18.8×(101-1)
=18.8×100
=1880;
(6)1.02×6.5
=(1+0.02)×6.5
=1×6.5+0.02×6.5
=6.5+0.13
=6.63.