Question

3,4 пунктыпомогитеее

Answer 1

3) 1.8m-0.5m=1.3m
1.3m+0.7m=2m 
2*3,94=7,88
4) 0.19z-0.12z=0.07z
0.07z+0.33z=0.4z
0.4*8.2=3.28
3.28-1.92=1.36