Question

计算． 4 7 ×4

7 18 × 9 13

14 13 × 13 42

5 12 × 12 5 × 59 6

18 19 × 3 14 × 1 18 ．

Answer 1

4 7 ×4= 16 7

7 18 × 9 13 = 7 26

14 13 × 13 42 = 1 3

5 12 × 12 5 × 59 6 = 59 6

18 19 × 3 14 × 1 18 = 3 266 ．