(1)1.26÷1.8=0.7 0.7 1.8.
(2)64×5.04=322.56 64
(3)43.5÷0.29=150 150 29
(4)5.63÷6.1≈0.92 0.922 61
(5)27.8÷2.5=11.12 11.12 25
(6)9.8×0.75=7.35 9.8
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1.26÷1.8= 0.7 64×5.04= 322.56 43.5÷0.29= 150
=1.26÷6÷0.3 =64×(5+0.04) =3×14.5÷ 0.29
=0.21÷0.3 =64×5+64×0.04 =3×5×2.9÷0.29
=0.7 =322.56 =150