15×0+15=
260+330=
196×5≈
1- =
389×2≈
630-140=
403×4=
0.52+0.4=
1-0.6=
8.8-6.7=
0.6-0.37=
6.45+5.5=
1-0.95=
1.2-0.3=
3.4-2.8=
5+0.07=
7+0.07=
1.2-0.8=
3.7+0.33=
8-4.6=
0.96-0.35=
5.8-3.6=
1.2+3.7=
9.5-1.5=
7.82+0.3=
0.92-0.9=
0.25+0.75=
2.16-1.26=
10+0.08=
1.2-0.9=
2.7+0.4=
3.5+4.8=
0.83-0.5=
0.47+0.23=
2.7+4.2=
3.7+0.4=
①327×8=
②305×6=
③240×5=
④458×7=
⑤702×3=
⑥840×4=
①
②36×()
③
④
⑤3.24×0.76+3.24×0.24
⑥