9.9*53.7+99*4.63算式怎么做
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9.9*53.7+99*4.63算式怎么做
9.9*53.7+99*4.63算式怎么做
9.9*53.7+99*4.63算式怎么做
你好:
9.9*53.7+99*4.63
=99×5.37+99×4.63
=99×(5.37+4.63)
=99×10
=990
=9.9*53.7+9.9*46.3
=9.9*(53.7+46.3)
=9.9*100
=990
=9.9*(53.7+46.3)
=990