脱式计算.12-14×5÷350.125×16×2.5(1.2+4.8÷0.6)-0.225×17+35×17(1-815×0.5)÷1156÷[1-(34+112)].-数学
题文
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答案
(1)12-14×5÷35 =12-14×
=12-2, =10; (2)0.125×16×2.5 =0.125×4×4×2.5, =(0.125×4)×(4×2.5), =0.5×10, =5; (3)(1.2+4.8÷0.6)-0.2 =(1.2+8)-0.2, =9.2-0.2, =9; (4)
=(
=1×
=
(5)(1-
=(1-
=(1-
=
=
(6)
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