
40.5×3.17+4.05×52.3+0.405×160的简便运算?
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40.5×3.17+4.05×52.3+0.405×160
=40.5×3.17+40.5×5.23+40.5×1.6
=40.5(3.17+5.23+1.6)
=40.5×10
=405
=40.5×3.17+40.5×5.23+40.5×1.6
=40.5(3.17+5.23+1.6)
=40.5×10
=405
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答:40.5×3.17+4.05×52.3+0.405×160 简便运算式
=4.05×10×3.17+4.05×52.3+4.05×16
=4.05×(31.7+52.3+16)
=4.05×100
=405
=4.05×10×3.17+4.05×52.3+4.05×16
=4.05×(31.7+52.3+16)
=4.05×100
=405
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