1) 77.2 - 43.778 =

2) 2.072 ÷ 5.6 =

3) 6.811 × 4.997 =

4) 27.001 - 7.5 =

5) 4.23 × 9 =

6) 19.2 + 31.82 =

7) 97.68 - 32.3 =

8) 0.468 ÷ 6.5 =

9) 0.6144 ÷ 1.6 =

10) 4.4 × 2.727 =

11) 20.97 + 85.62 =

12) 48 + 58.1 =