问题
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1.31×12.5×0.15×16的值是()。 A.39.3 B.40.3 C.26.3 D.38.3
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1.31×12.5×O.3×8的值是()。A.40.3 B.39.3 C .25.7 D.28.9
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-2[-4-(-3+5)]的值是()。A.-16 B.-10C.12 D.16
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-2[-4-(-3+5)]的值是()。A.-16 B.-10 C.12 D.16
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31×12.5×0.15×16的值是()。A.39.3 B.40.3 C.26.2 D.26.31
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12×80x0.25×0.125×15×0.4的值是()。A.180B.82 C.126(2/3)D.28