问题
解答题
19-2.3×3.6
0.125×2.5×8×0.4
(18.02+12.58)×1.3
42.3÷0.09×1.8
0.35÷0.25×4
9.06×10.1-0.1×9.06.
答案
(1)19-2.3×3.6,
=19-8.28,
=10.72;
(2)0.125×2.5×8×0.4,
=(0.125×8)×(2.5×0.4),
=1×1,
=1;
(3)(18.02+12.58)×1.3,
=30.6×1.3,
=39.78;
(4)42.3÷0.09×1.8,
=470×1.8,
=846;
(5)0.35÷0.25×4,
=1.4×4,
=5.6;
(6)9.06×10.1-0.1×9.06,
=9.06×(10.1-0.1),
=9.06×10,
=90.6.