+ =
90﹣40=
1.25×4=
100÷25=
9+2﹣5=
÷ ×7=
86+124= ×63=49
2﹣= 1÷×=
10﹣3.6= 8.32÷4=
0.25×0.25= 0.38×90+3.8=
= = 3.2-﹣1.25= 5÷-÷5=
= 298÷59≈ 400÷125÷8=
列式是:。
261﹣99= 17÷34= 2.1+0.79= 80×125%=
÷36= 38.38÷38= +×0= ×3÷×3=
0.56÷0.8= = = =
5×( )= 30×= 0.53= 3﹣=