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①52+27-35=
②70-43+28=
③28+39-17=
④59-34+12=
⑤85-24+29=
⑥44+19-29=
13+24+5= 73+5-26= 84-21-32=
50-4×8= 8×8-25= 53-(28-17)=
①37+9=
②63-21=
③32+26=
④81-18=
⑤76-(38+29)=
⑥49+31-53=
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