400g= kg 32dm2= m2 0.5t= kg
4550m= km 2m57cm= m 4.34+5.56=
5.73+5.27= 8-1.3= 7.51-6.5= 6.9+2.32=
5.4×5= 7.6+6.6= 2 3.6+8.24= 6.25×1000=
1.25×0.08= 53.2÷100= 0.2×0.04= 2.8×4=
0.69×10=
7.6﹣5=
68.6+1.63=
10﹣4.1=
1﹣0.75=
11.8+8.2=
3.12×100=
1.2×0.5=