8×500= 300÷10= 2×35= 200×5=
140÷20= 68÷4= 15×8= 51÷3=
14-8=
16-7=
86+124= ×63=49
2﹣= 1÷×=
10﹣3.6= 8.32÷4=
0.25×0.25= 0.38×90+3.8=
5.43+5.57= 125×72= 299÷102≈ 6×÷6×=
5%×56= 33= = =