(1)

(2)

(3)

(4)

(5)

(6)

(1)0.5×5＋2.5＝

(2)1.6×0.25＝

(3)8.6＋2.4－2.6＝

(4)(5＋2.5)×8＝

(5)3.2×0.2×5=

(6)8×4×2.5＝

(7)0.8×1.25×10＝

(8)7.1－(2.1＋1.5)＝

(1)0.5×0.5×6＝

(2)3.2×0.25＝

(3)1.6÷2×25＝

(4)(5－3.5)×8＝

(5)0.8×0.8×6＝

(6)(2.1－1.5)×5＝

(7)0.4×1.3×0.5＝

(8)(1.6＋2.4)×0.5＝

(1)1.4×0.5×0.8＝

(2)(5.3＋2.7)×2＝

(3)1.25×2×0.4＝

(4)(1.3＋2.5)×2＝

(5)1.2×0.5×0.5＝

(6)0.25×2×8＝

(7)0.2×0.2×0.2＝

(8)1.5×4×0.05＝

(1)15x＋1.8x－7.8x=

(2)c＋c=

(1)4x＋1.3x=

(2)2×x×a=