1.87×9.9+0.(简便运算)

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1.87×9.9+0.(简便运算)

1.87×9.9+0.(简便运算)
1.87×9.9+0.(简便运算)

1.87×9.9+0.(简便运算)
1.87×9.9+0.187
=1.87×9.9+1.87×0.1
=1.87×(9.9+0.1)
=1.87×10
=18.7

1.87x9.9+0.187
=1.87x9.9+1.87x0.1
=1.87x(9.9+0.1)
=1.87x10
=18.7

1.87×9.9+0.187
=1.87×9.9+1.87×0.1
=1.87×(9.9+0.1)
=1.87×10
=18.7