9.7+0.03= + = ×33= 0.52=
20%- = 10:0.2= 0×0.9+0.1= 43=
420+590= 72÷3= 0.8×4=
0.24+0.8= 1.1-0.11= 3.2+0.15= 0÷4.5=
A.
B.
C.