(
| 24 |
| 29 |
| 16 |
| 17 |
| 1 |
| 8 |
| 15 |
| 17 |
| 2 |
| 13 |
| 1 |
| 2 |
| 1 |
| 3 |
4×0.8×2.5×12.5
(2.8+3.85÷3.5)×4.6.(1)(
| 24 |
| 29 |
| 16 |
| 17 |
| 1 |
| 8 |
| 15 |
| 17 |
=
| 24 |
| 29 |
| 1 |
| 8 |
| 16 |
| 17 |
| 1 |
| 8 |
| 15 |
| 17 |
=
| 3 |
| 29 |
| 2 |
| 17 |
| 15 |
| 17 |
=
| 3 |
| 29 |
| 2 |
| 17 |
| 15 |
| 17 |
=
| 3 |
| 29 |
=1
| 3 |
| 29 |
(2)
| 2 |
| 13 |
| 1 |
| 2 |
| 1 |
| 3 |
=
| 2 |
| 13 |
| 5 |
| 6 |
=
| 2 |
| 13 |
| 1 |
| 6 |
=
| 12 |
| 13 |
(3)4×0.8×2.5×12.5,
=(4×2.5)×(0.8×12.5),
=10×10,
=100;
(4)(2.8+3.85÷3.5)×4.6,
=(2.8+1.1)×4.6,
=3.9×4.6,
=17.94.