题目内容
| 能简算就简算. 1.25×7×0.8 | 7.28-3.14+1.72-2.86 | ||||||
| (100-1456÷26)×78 | (
|
(1)1.25×7×0.8,
=7×(1.25×0.8),
=7×1,
=7;
(2)7.28-3.14+1.72-2.86,
=7.28+1.72-(3.14+2.86),
=9-6,
=3;
(3)(100-1456÷26)×78,
=(100-56)×78,
=44×78,
=3432;
(4)(
+
+
)×36,
=
×36+
×36+
×36,
=3+4+6,
=13.
=7×(1.25×0.8),
=7×1,
=7;
(2)7.28-3.14+1.72-2.86,
=7.28+1.72-(3.14+2.86),
=9-6,
=3;
(3)(100-1456÷26)×78,
=(100-56)×78,
=44×78,
=3432;
(4)(
| 1 |
| 12 |
| 1 |
| 9 |
| 3 |
| 18 |
=
| 1 |
| 12 |
| 1 |
| 9 |
| 3 |
| 18 |
=3+4+6,
=13.
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