题目内容
| 灵活计算下面各题 (1)54.75-5.25-14.75 | (2)16.4÷(4.3×2-0.4) | ||||||
| (3)1.25×32 | (4)
|
(1)54.75-5.25-14.75,
=54.75-(14.75+5.25),
=54.75-20,
=34.75;
(2)16.4÷(4.3×2-0.4),
=16.4÷(8.6-0.4),
=16.4÷8.2,
=2;
(3)1.25×32,
=(1.25×8)×4,
=10×4,
=40;
(4)
×[1-(
-
)],
=
×[1-
],
=
×
,
=
.
=54.75-(14.75+5.25),
=54.75-20,
=34.75;
(2)16.4÷(4.3×2-0.4),
=16.4÷(8.6-0.4),
=16.4÷8.2,
=2;
(3)1.25×32,
=(1.25×8)×4,
=10×4,
=40;
(4)
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