Question

0.74×0.8	3× 5 44 + 5 22	2- 2 5 ×0.3	1.75× 1 25
2 2 27 ×80%	4 5 ×2 1 2	4 1 3 ×15	1 3 × 13 3 ．

Answer 1

0.74×0.8=0.592	3× 5 44 + 5 22 = 25 44	2- 2 5 ×0.3=1 22 25	1.75× 1 25 =0.07
2 2 27 ×80%=1 89 135	4 5 ×2 1 2 =2	4 1 3 ×15=65	1 3 × 13 3 =1 4 9 ．