600×90= 50×80= 600÷30= 20×34= 210×4=
11×600= 25×100= 430×20= 120×30= 3×900=
2.1-2.01= 3.07+0.125= 0.35×0.4=
0.85×100= 1.25×4= 4-0.89=
0.2×0.5+1.3= 3.75-0.75-3=
15×7×4 25×19×4 2×23×50 88×125
8.4+0.2= 8.3-0.8= 9.7+5.7= 65.2-5=
0.3×0.7= 3.21÷1000= 0.25×0.4= 45×0.2=
25×2= 64÷2= 100-45= 11×9=
50×6= 15×4= 37+63= 50+80=
13.4+1.6= 7.7-7= 5×0.8= 23.6÷100×10=
2.4×0.5= 9.6-1.62= 8a-3a= 3-3×0.5=