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0.45X12x0.2,0.87x5.2+4.64脱式计算

0.45X12x0.2 =(0.45x0.2)x12 =0.09x12 =1.08 0.87x5.2+4.64 =0.87x5+0.87x0.2+4.64 =4.35+0.174+4.64 =4.524+4.64 =9.164

7.2×1.8+5.94 =12.96+5.94 =18.9 你好,本题已解答,如果满意 请点右下角“采纳答案”。

35.2+64.8÷0.5x1.2脱式计算 解: 35.2+64.8÷0.5x1.2 =35.2+129.6x1.2 =35.2+155.52 =190.72

4.7x5.9+5.2x4.7-4.7x1.1 =4.7×(5.9+5.2-1.1) =4.7×10 =47

(3.64一5.696/8.9x1.2)x0.05 =(3.64-0.64x1.2)x0.05 =(3.64-0.768)x0.05 =2.872x0.05 =0.1436 (请采纳)

脱式计算: 4.5x1.2-3.15÷15 =3.75-0.21 =3.54

7.2×1.8+5.9 =12.96+5.9 =18.86 你好,本题已解答,如果满意 请点右下角“采纳答案”。

17.5÷0.5X1.8 =35x1.8 =63 , 你好,本题已解答,如果满意 请点右下角“采纳答案”。

3.8-0.8×1.5-0.5 =3.8-(0.8×1.5+0.5) =3.8-(0.8×3×0.5+0.5) =3.8-0.5×(2.4+1) =0.4+3.4-0.5×3.4 =0.4+3.4×(1-0.5) =0.4+3.4×0.5 =0.4+1.7 =2.1

0.93x1.48十9.3x0.852 =0.93x1.48十0.93x8.52 =0.93x(1.48十8.52) =0.93x10 =9.3

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