题目内容
脱式计算,能简算的要简算.
| 97÷1+35.6+0×6 | 1375+450÷15×25 | ||||||||||
[4.5+(13×
| 48×
| ||||||||||
| 94.47-(94.47-86.555) | 3.42×76.3+76.3×5.76+9.18×23.7. |
(1)97÷1+35.6+0×6
=97+35.6+0,
=132.6;
(2)1375+450÷15×25
=1375+30×25,
=1375-750,
=625;
(3)[4.5+(13×
+13×
)]÷
=[4.5+(13×
×2)]÷
,
=[4.5+9.75]÷
,
=14.25×
,
=8.55;
(4)48×
+48×
+48×8
=(
+
+8)×48,
=9×48,
=432;
(5)94.47-(94.47-86.555)
=94.47-94.47+86.555,
=0+86.555,
=86.555;
(6)3.42×76.3+76.3×5.76+9.18×23.7
=(3.42+5.76)×76.3+9.18×23.7,
=9.18×76.3+9.18×23.7,
=(76.3+23.7)×9.18,
=100×9.18,
=918.
=97+35.6+0,
=132.6;
(2)1375+450÷15×25
=1375+30×25,
=1375-750,
=625;
(3)[4.5+(13×
| 3 |
| 8 |
| 3 |
| 8 |
| 5 |
| 3 |
=[4.5+(13×
| 3 |
| 8 |
| 5 |
| 3 |
=[4.5+9.75]÷
| 5 |
| 3 |
=14.25×
| 3 |
| 5 |
=8.55;
(4)48×
| 9 |
| 16 |
| 7 |
| 16 |
=(
| 7 |
| 16 |
| 9 |
| 16 |
=9×48,
=432;
(5)94.47-(94.47-86.555)
=94.47-94.47+86.555,
=0+86.555,
=86.555;
(6)3.42×76.3+76.3×5.76+9.18×23.7
=(3.42+5.76)×76.3+9.18×23.7,
=9.18×76.3+9.18×23.7,
=(76.3+23.7)×9.18,
=100×9.18,
=918.
练习册系列答案
相关题目