将算式与得数用线连起来．
|
3.2 ＋2.5 |
6.6 |
8.8 －0.2 |
|
5.5 ＋3.1 |
4.17 |
8.9 －2.3 |
|
4.03 ＋2.57 |
5.7 |
6.29 －2.12 |
|
3.12 ＋1.05 |
8.6 |
6.9 －1.2 |
给下面的式子选择正确的结果．
|
24 ×15 |
2752 |
|
23 ×22 |
9801 |
|
43 ×64 |
360 |
|
99 ×99 |
648 |
|
36 ×18 |
506 |
