问题
填空题
计算“16.8×10.1”的简便方法是( )
A.16.8×10+0.1
B.16.8×10+16.8×0.1
C.16.8×10.1×0.1
D.16.8×(10+0.1)-1.68
答案
16.8×10.1
=16.8×(10+0.1)
=16.8×10+16.8×0.1(与选项B相同)
=168+1.68
=169.68.
故选:B.
计算“16.8×10.1”的简便方法是( )
A.16.8×10+0.1
B.16.8×10+16.8×0.1
C.16.8×10.1×0.1
D.16.8×(10+0.1)-1.68
16.8×10.1
=16.8×(10+0.1)
=16.8×10+16.8×0.1(与选项B相同)
=168+1.68
=169.68.
故选:B.