6.39×100=
0.6+7.84=
125×37×8=
396﹣2.8﹣2.2=
7.5÷100=
20﹣9.9=
62×(100+1)=
(35+49)÷7=
100×10= 90×8= 120×5= 440÷40=
480÷8= 25×4= 354-99= 150×60=
28÷7×5= 48+32-24= 64÷8-8= 24+16×6=
48+52÷4= 100-5×4= (57-27)÷3= 80-80÷4=
453-(316-147) 505-229-171
154-59+146 178+225+222
5.63-3= 0.5× = +0.75= 3.6÷60%=
4× ÷4× = 0.22= 0.25×16= 0.1+99×0.1=