49+35= 700× 6= 100-45= 48÷8=
540-60= 0×150= 1-=
303×4≈ 702-199≈ 89×9≈
0.48÷0.3= 36- = 2.5×40= ×(15+ )=
684+198= 12×1%= × = ×9÷ =