神机妙算.3.2×0.82+3.2×1.18 35×1.6÷0.8 12....
神机妙算.3.2×0.82+3.2×1.1835×1.6÷0.812.5×16×0.54.05÷0.81-2.874.8÷0.16÷0.32.34×101-2.34....
神机妙算.3.2×0.82+3.2×1.18 35×1.6÷0.8 12.5×16×0.5 4.05÷0.81-2.874.8÷0.16÷0.3 2.34×101-2.34.
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(1)3.2×0.82+3.2×1.18
=3.2×(0.82+1.18)
=3.2×2
=6.4;
(2)35×1.6÷0.8
=35×(1.6÷0.8)
=35×2
=70;
(3)12.5×16×0.5
=12.5×(2×8)×0.5
=(12.5×8)×(2×0.5)
=100×1
=100;
(4)4.05÷0.81-2.87
=5-2.87
=2.13;
(5)4.8÷0.16÷0.3
=4.8÷(0.16×0.3)
=4.8÷0.048
=100;
(6)2.34×101-2.34
=2.34×(101-1)
=2.34×100
=234.
=3.2×(0.82+1.18)
=3.2×2
=6.4;
(2)35×1.6÷0.8
=35×(1.6÷0.8)
=35×2
=70;
(3)12.5×16×0.5
=12.5×(2×8)×0.5
=(12.5×8)×(2×0.5)
=100×1
=100;
(4)4.05÷0.81-2.87
=5-2.87
=2.13;
(5)4.8÷0.16÷0.3
=4.8÷(0.16×0.3)
=4.8÷0.048
=100;
(6)2.34×101-2.34
=2.34×(101-1)
=2.34×100
=234.
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