×× ÷÷ 15÷×
×34× ÷15÷ ×÷
①
②
③
④
⑤
⑥
①÷12÷
②×÷
③÷÷
④××
⑤÷÷
⑥÷×
261﹣99= 17÷34= 2.1+0.79= 80×125%=
÷36= 38.38÷38= +×0= ×3÷×3=
86+124= ×63=49
2﹣= 1÷×=
10﹣3.6= 8.32÷4=
0.25×0.25= 0.38×90+3.8=