2.5×3=
15×8=
2.6÷13=
1.5+0.7=
43=
1.25×3.1×0.8=
3+32=
8.7÷0.3=
29÷1000=
0.36÷12=
0.38 2.56
问题:
解答:
4+=9
9-=4
3+=7
7-=3
7+=10
10-=7
8.1÷0.03= +3= ×= ﹣=
×= 134﹣18= ×0÷3= 7.45+8.55=