375+450×25
9.07-22.78÷3.4
1.25×14×0.8
(
| 1 |
| 4 |
| 5 |
| 9 |
5.65×
| 5 |
| 3 |
| 7 |
| 20 |
| 3 |
| 5 |
=375+11250,
=11625;
(2)9.07-22.78÷3.4,
=9.07-6.7,
=2.37;
(3)1.25×14×0.8,
=1.25×0.8×14,
=1×14,
=14;
(4)(
| 1 |
| 4 |
| 5 |
| 9 |
=(0.8+0.8)×
| 5 |
| 9 |
=
| 8 |
| 5 |
| 5 |
| 9 |
=
| 8 |
| 9 |
(5)5.65×
| 5 |
| 3 |
| 7 |
| 20 |
| 3 |
| 5 |
=5.65×
| 5 |
| 3 |
| 7 |
| 20 |
| 5 |
| 3 |
=(5
| 13 |
| 20 |
| 7 |
| 20 |
| 5 |
| 3 |
=6×
| 5 |
| 3 |
=10.