
脱式计算.(1)1375+450÷18×25 (2)(14+38)÷(1?34×25)(3)415÷(149?23×56)+56
脱式计算.(1)1375+450÷18×25(2)(14+38)÷(1?34×25)(3)415÷(149?23×56)+56....
脱式计算.(1)1375+450÷18×25 (2)(14+38)÷(1?34×25)(3)415÷(149?23×56)+56.
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(1)1375+450÷18×25,
=1375+25×25,
=1375+625,
=2000;
(2)(
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(3)
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=1375+25×25,
=1375+625,
=2000;
(2)(
1 |
4 |
3 |
8 |
3 |
4 |
2 |
5 |
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2 |
8 |
3 |
8 |
3 |
10 |
=
5 |
8 |
7 |
10 |
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5 |
8 |
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7 |
=
25 |
28 |
(3)
4 |
15 |
4 |
9 |
2 |
3 |
5 |
6 |
5 |
6 |
=
4 |
15 |
13 |
9 |
5 |
9 |
5 |
6 |
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4 |
15 |
8 |
9 |
5 |
6 |
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4 |
15 |
9 |
8 |
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6 |
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3 |
10 |
5 |
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=
9 |
30 |
25 |
30 |
=
17 |
15 |
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