直接写出下面各题的得数.
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(1)2.5 ×0.6×4= |
(2)1.1 ×3×0.3= |
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(3)4.2 ×5×0.2= |
(4)0.3 ×2×0.1= |
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(5)9 ×0.2×10= |
(6)0.1 ×2.4×8= |
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(7)8 ×0.25×10= |
(8)1.2 ×0.5×4= |
口算.
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(1)4 ×17= |
(2)6 ×16= |
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(3)40 ×17= |
(4)60 ×16= |
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(5)38 ×10÷2= |
(6)45 ×100÷3= |
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(7)30 ×60= |
(8)8 ×1000= |
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(9)800 -40×20= |
(10)200 +180÷3= |