12.7+2.53+7.47
0.73×1.8+8.2×0.73
0.25×39+0.25
16.3﹣6.42﹣3.58
0.69×101
8.4×(64﹣54÷9)
0.4x﹣7=21
x÷32=18
4.5x+5.4=14.4
8x+5x﹣7=19
x﹣1.4=18.43
3×1.5+6x=33.
4.85×0.73=
32.9﹣24.85=
16.58+3.9=
9﹣5.48=
5.07×80=
25.73+8.3=
1.5时=分
1米3厘米=米.