(1)73.1×2.5=
(2)0.7×50.6=
(3)12.6×2.65=
(4)5.16×3.5=
(5)0.26×0.45=
(6)2.01×3.8=
(7)10.2×0.25=
(8)5.06×6.5=
(9)0.38×7.09=(1)73.1×2.5=182.75;

| . |
| 3655 |
146 2
| . |
| 182.75 |
(2)0.7×50.6=35.42;
5 0.6

| . |
| 35.42 |
(3)12.6×2.65=33.39;
1 2.6

| . |
| 630 |
7 5 6
25 2
| . |
| 33.390 |
(4)5.16×3.5=18.06;
5.1 6

| . |
| 2580 |
15 4 8
| . |
| 18.060 |
(5)0.26×0.45=0.117;
0.26

| . |
| 130 |
104
| . |
| 0.1170 |
(6)2.01×3.8=7.638;
2.0 1

| . |
| 1608 |
6 0 3
| . |
| 7.638 |
(7)10.2×0.25=2.55;
1 0.2
×0.2 5
| . |
| 510 |
2 0 4
| . |
| 2.550 |
(8)5.06×6.5=32.89;
5.0 6

| . |
| 2530 |
30 3 6
| . |
| 32.890 |
(9)0.38×7.09=2.6942.
7.09

| . |
| 5672 |
2 1 27
| . |
| 2.6942 |