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24.3%4.5+3.2x0.8怎么简算

24.3%4.5+3.2x0.8怎么简算 24.3%4.5+3.2x0.8 =24.3÷4.5+3.2*0.8 =5.4+2.56 =7.96

24.3除以4.5加3.2乘以0.8怎样简便就怎样算 24.3除以4.5加3.2乘以0.8 =5.4+2.56 =7.96 直接计算

解:原式=1.25×0.8×0.32 =1×0.32 =0.32 望采纳

=3.2×0.2+0.2×4 =0.2×(3.2+4) =0.2×7.2 =1.44

4.47 x0.8+4.47x3.2 =4.47 x(0.8+3.2) =4.47 x4 =17.88 , 你好,本题已解答,如果满意 请点右下角“采纳答案”。

3.2x5.4+54x0.68 =3.2x5.4+5.4x6.8 =(3.2+6.8)x5.4 =10x5.4 =54 3.2x5.4+54x0.68 =0.32x54+54x0.68 =(0.32+0.68)x54 =1x54 =54

括号3.2加0.12括号乘以0.8用简易的方法算 (3.2+0.12)x0.8 =3.2x0.8+0.12x0.8 =2.56+0.096 =2.656

3.2x0.125x25 =0.8x(0.125x25x4) =0.8x(0.125x100) =0.8x12.5 =10

3.6x5.7+3.67 =20.52+3.67 =24.19 2.57x99+2.57 =2.57x(99+1) =2.57x100 =257 5.3-0.6x0.24 =5.3-0.144 =5.156 3.9x4.5+4.5x6.1 =(3.9+6.1)x4.5 =10x4.5 =45 1.25x27x0.8 =1.25x0.8x27 =1x27 =27 2.5x(40+4+0.4) =2.5x4x11.1 =10x11.1 =111

原式=0.4×2.4÷1.2=0.96÷1.2=0.8

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