(1)1.8÷0.3=

(2)3.6×10=

(3)48÷0.8=

(4)0.4×10=

(1)5.5÷5=

(2)0.6×0.9=

(3)0.81÷9=

(4)7.5÷5=

(1)8＋1.2×4=

(2)1.4×2×0.2=

(3)6－1.4×4=

(4)3.4×3－8.2=

(1)10＋3.4=

(2)1.8－0.9=

(3)6.3×2=

(4)4.2＋3.7=

(1)2.5×5=

(2)7.1×0.3=

(3)0.2×3.1=

(4)3.5×0.3=

(1)0.4×0.25=

(2)3.7－2.8=

(3)15.3＋0.3=

(4)4.6×0.2=

(1)1.25×7.2×0.8=

(2)12.5×9.4×0.8=

(3)4.3×9＋4.3=

(4)36×(10＋0.1)=

(1)2.5×3.14×4=

(2)5×3.9×0.2=

(3)(25＋2.5)×4=

(4)7.8×1.1－7.8=

(1)1.2×0.2×5=

(2)0.25×1.3×4=

(3)5.9×11－5.9=

(4)3.8×2.5×4=

(1)7.5－2.5×3=

(2)5×0.4×6=

(3)3.75－0.75×2=

(4)3.1×3－8=