用简便方法计算下面各题.4.37×0.55+56.3×0.055;2.5

用简便方法计算下面各题.4.37×0.55+56.3×0.055;2.5×1.6×1.25;0.59×9.8;53.6×38.2+536×6.08+53.6.
2026年09月23日 03:16
有1个网友回答
网友(1):

(1)4.37×0.55+56.3×0.055
=43.7×0.055+56.3×0.055
=(43.7+56.3)×0.055
=100×0.055
=5.5

(2)2.5×1.6×1.25
=2.5×2×0.8×1.25
=(2.5×2)×(0.8×1.25)
=5×1
=5

(3)0.59×9.8
=0.59×(10-0.2)
=0.59×10-0.59×0.2
=5.9-0.118
=5.782

(4)53.6×38.2+536×6.08+53.6
=53.6×38.2+53.6×60.8+53.6
=53.6×(38.2+60.8+1)
=53.6×100
=5360