25分0.4时 4.3×0.40.43×4 1.2×10.112+1.2
72×0.10.72 4.7×8.98.9×7.4 3.6×2.53.6+2.5
2.7分米=分米厘米 45分=元
2.7+1.9=
80×1.5=
4.5×0.2=
2.3-1.5 =
1.6×50=
2.63-0.3=
37.4÷10=
39×0.01=
10.7-1.72= 0.28×5.6= 350×0.24=
7.8×10.2-7.8×0.2 8.6×10.1
7.5+x=14.4 x÷2.5=14 2x-2.4=3.6