(1)2.144÷3.2+4.32= (2)9.66÷2.3÷0.3= (3)5.5 ×0.25 ×1.4= (4) 1.25 × 2.47 ×8= (5)27 × 10.2 = (6)4.8 × 3.8 +6.2 ×4.8=
(1)原式=0.67+4.32 =4.99 | (2)原式=4.2÷0.3 =14 | (3)原式=5.5×0.25×(1+0.4) =1.925 |
(4)原式=1.25×8×2.47 =24.7 | (5)原式=27×(10+0.2) =275.4 | (6)原式=4.8×(3.8+6.2) =48 |
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