3.1416×7.5944+3.1416×(-5.5944)的值是( ) A.6.1632 B.6.2832 C.6.5132 D.5.3692
问题描述:
3.1416×7.5944+3.1416×(-5.5944)的值是( )
A. 6.1632
B. 6.2832
C. 6.5132
D. 5.3692
答
3.1416×7.5944+3.1416×(-5.5944),
=3.1416(7.5944-5.5944),
=2×3.1416,
=6.2832.
故选B.