6.3+4.82+3.7-0.82 307×10.1 0.45×18
132-43.7-56.3 0. 32×12.5×2.5 5.6×1.25
7.6×27+7.6×174-7.6 72÷1.25÷8 270÷4.5
(7.7+15.4)÷7 9.9×34 1.5×1.2+8.8×1.5 7.3+2.7-7.3+2.7
4.7×8.3+5.2×8.3+0.83 7.12×4-1.12×4 450÷2.5÷2
12.5×8.8 (125-1.25)×0.8 3.5×0.4+3.5×0.6
39÷(1.3×5) 2.2÷4+0.6÷4 4.83÷5+2.17÷5
42÷3.5 26.7-0.5×5-7.5 48.4+2.78+51.6-0.48