问题
解答题
1785÷17+98
(3.2+6.8÷0.17)×2.5
1.7×4.8+5.2×1.7
8.3+1.9-5.3+4.6.
答案
(1)1785÷17+98,
=105+98,
=203;
(2)(3.2+6.8÷0.17)×2.5,
=(3.2+40)×2.5,
=43.2×2.5,
=108;
(3)1.7×4.8+5.2×1.7,
=1.7×(4.8+5.2),
=1.7×10,
=17;
(4)8.3+1.9-5.3+4.6,
=(8.3-5.3)+(1.9+4.6),
=3+6.5,
=9.5.