题目内容
脱式计算,能简算的要简算:
(291-38×3.5-35.5)÷3.5
0.466×1.8+4.66×1.82-4.66.
(291-38×3.5-35.5)÷3.5
0.466×1.8+4.66×1.82-4.66.
(1)(291-38×3.5-35.5)÷3.5,
=(291-133-35.5)÷3.5,
=(158-35.5)÷3.5,
=122.5÷3.5,
=35;
(2)0.466×1.8+4.66×1.82-4.66,
=4.66×0.18+4.66×1.82-4.66,
=4.66×(0.18+1.82-1),
=4.66×1,
=4.66.
=(291-133-35.5)÷3.5,
=(158-35.5)÷3.5,
=122.5÷3.5,
=35;
(2)0.466×1.8+4.66×1.82-4.66,
=4.66×0.18+4.66×1.82-4.66,
=4.66×(0.18+1.82-1),
=4.66×1,
=4.66.
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