| 11 |
| 18 |
| 9 |
| 10 |
| 11 |
| 18 |
=
| 11 |
| 18 |
| 9 |
| 10 |
| 1 |
| 10 |
=
| 11 |
| 18 |
=
| 11 |
| 18 |
(2)3-
| 5 |
| 9 |
| 7 |
| 20 |
| 11 |
| 36 |
=3-
| 7 |
| 36 |
| 11 |
| 36 |
=3-(
| 7 |
| 36 |
| 11 |
| 36 |
=3−
| 1 |
| 2 |
=2
| 1 |
| 2 |
(3)9.9×17.6
=(10-0.1)×17.6
=10×17.6-1.76
=174.24
(4)8.6-(5.6+4.8)÷1.3
=8.6-10.4÷1.3
=8.6-8
=0.6
(5)
| 4 |
| 9 |
| 2 |
| 5 |
| 1 |
| 10 |
| 4 |
| 3 |
=
| 4 |
| 9 |
| 1 |
| 2 |
| 4 |
| 3 |
=
| 4 |
| 9 |
| 1 |
| 3 |
=
| 4 |
| 3 |
