217﹣18= ×= 3÷= 0.78+0.32=
32﹣0.25= 3﹣= 200×3.6= +×5=
4+0.7x=102
38﹣19=
2.5×4=
=
9﹣0.9=
125×60%=
7.2÷0.4=
4.5a﹣a=
1÷10+=
()×12=
×3÷=
×0=
4321+500= 13.2-5.2= × = 0.2×1.4=
8÷25%= + = 2.4÷ = ÷ =
19﹣1.7= 2.4÷0.04= 496+298= ×0.2=
9.7+0.03= ÷1.75= 1×÷= +÷+=
×= 0.54÷6= ÷= 2.6×0.3= 27.8﹣1.9=
A
2.5
20
B
2.6
19.6
C
18.5