①56-50=
②42+20=
③49-9=
④30+12=
⑤38+9=
⑥61-7=
⑦17-(9+3)=
⑧26+8−20=
⑨24+8+5=
13-9= 12-7= 14-5= 8+8= 14-6=
18-9= 13-4= 15-6= 17-8= 16-7=
11-4= 13-5= 17-5= 10+8= 15-10=
①69×101
②18.5-4.6-5.4
③2.5÷
④
⑤
①101×32
②2.74+8.67+7.26+11.33
③18.8﹣5.8﹣﹣4.2﹣
④×+÷
⑤0.888×125×73+999×3
⑥4﹣[3.75×(1.2﹣)+]