下列算式中,结果与114−0.3+34−710相等的是( ) A.114+34−0.3+0.7 B.114+(0.3+0.7)+34 C.114+34−(0.3+0.7) D.114−34−(0.3+0.7)
问题描述:
下列算式中,结果与1
−0.3+1 4
−3 4
相等的是( )7 10
A. 1
+1 4
−0.3+0.73 4
B. 1
+(0.3+0.7)+1 4
3 4
C. 1
+1 4
−(0.3+0.7)3 4
D. 1
−1 4
−(0.3+0.7) 3 4
答
1
-0.3+1 4
-3 4
,7 10
=(1
+1 4
)-(0.3+3 4
),7 10
=2-1,
=1.
故选:C.