问题 解答题
怎样算简便就怎样算.
2.33×0.5×4
44.28÷0.9÷4.1
0.65×2011.08×0.8÷0.27
9.07-22.78÷3.41.2×2.5+0.8×2.5.
答案

①2.33×0.5×4

=2.33×(0.5×4)

=2.33×2

=4.66;

②44.28÷0.9÷4.1

=49.2÷4.1

=12;

③0.65×201

=0.65×(200+1)

=130+0.65;

=130.65;

④1.08×0.8÷0.27

=0.864÷0.27

=3.2;

⑤9.07-22.78÷3.4

=9.07-6.7

=2.37;

⑥1.2×2.5+0.8×2.5

=2.5×(1.2+0.8)

=2.5×2

=5.

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