①0.175÷0.25×4
②7.4×1.3-4.68÷0.9
③4.57×1.2-4.57
④0.82×(3.2-2.99÷2.3)
⑤19.8-10.08÷4.5
⑥0.4×(3.2-0.8)÷1.2
①0.34×2.5=
②1.5×1.7=
③0.28×0.39=
④4.2×2.4=
⑤6.52×27=
⑥0.32×1.25=
① ×[0.75﹣( ﹣25%)]÷1.25
②6.37×1.25﹣1 +4.63×125%
③7.09× +0.225×6﹣60%×0.64
④ ×3+ ×25+ ×
⑤
⑥