(0.125)+(-¾)-(-4⅝)
(1)0.125+3.7×+×5.3(2)(4.6÷5+0.4×0.2)×2.8(3)×[÷(-)](4)(+)×+...
(1)0.125+3.7× + ×5.3 (2)(4.6÷5+0.4×0.2)×2.8 (3) ×[ ÷( - )] (4)( + )× +
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(1)0.125+3.7× + ×5.3 (2)(4.6÷5+0.4×0.2)×2.8 (3) ×[ ÷( - )] (4)( + )× + (1)原式= +3.7× + ×5.3 = ×(1+3.7+5.3) = ×10 = (2)原式=(4.6×0.2+0.4×0.2)×2.8 =(4.6+0.4)×0.2×2.8 =5×0.2×2.8 =2.8 (3)原式= ×( ÷ ) = × ×3 = (4)原式= × + × + = + + =1
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