题目内容
| ①957-420÷60 | ②38+3.4+122+6.6 | ③25×(4.41-16.4÷40) | ||||||||||||
| ④4.8×3.27+5.73×4.8+4.8 | ⑤(
| ⑥
|
①957-420÷60,
=957-7,
=950;
②38+3.4+122+6.6,
=(38+122)+(3.4+6.6),
=160+10,
=170;
③25×(4.41-16.4÷40),
=25×(4.41-0.41),
=25×4,
=100;
④4.8×3.27+5.73×4.8+4.8,
=4.8×(3.27+5.73+1),
=4.8×10,
=48;
⑤(
+
-
)×24,
=
×24+
×24-
×24,
=10+15-20,
=25-20,
=5;
⑥
÷[1-(
-
)],
=
÷[1-
],
=
÷
,
=
.
=957-7,
=950;
②38+3.4+122+6.6,
=(38+122)+(3.4+6.6),
=160+10,
=170;
③25×(4.41-16.4÷40),
=25×(4.41-0.41),
=25×4,
=100;
④4.8×3.27+5.73×4.8+4.8,
=4.8×(3.27+5.73+1),
=4.8×10,
=48;
⑤(
| 5 |
| 12 |
| 5 |
| 8 |
| 5 |
| 6 |
=
| 5 |
| 12 |
| 5 |
| 8 |
| 5 |
| 6 |
=10+15-20,
=25-20,
=5;
⑥
| 4 |
| 15 |
| 2 |
| 3 |
| 3 |
| 5 |
=
| 4 |
| 15 |
| 1 |
| 15 |
=
| 4 |
| 15 |
| 14 |
| 15 |
=
| 2 |
| 7 |
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