①49+665=
②★806-308=
③★384+616=
④521×2=
⑤380×3=
⑥603×3=
0.7+0.9=
0.8+0.6=
8.24+3.76=
4.1-3.8=
14+0.78=
14.6-0.34=
1.3+8.56=
0.8-0.45=
0.8-0.55=
4-0.04=
1-0.03=
30.5+3.05=
0.78+2.2=
5-0.08=
3.25+0.75=
2.5+7.5=
⑴72×4=
⑵95﹣57=
⑶〇518+339=
⑷280×8=
⑸207×5=
⑹〇673﹣456=
①260+480=
②570-190=
③560+370=
④900-580=
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