问题
解答题
计算 (1)5.425+4.575= (2)67-48= (3)36÷2= (4)7.2÷0.04= (5)6÷(
(6)42×(
(7)3
(8)7
(9)3÷
(10)73×0.6+26×60%+
|
答案
(1)5.425+4.575=10;
(2)67-48=19;
(3)36÷2=18;
(4)7.2÷0.04=180;
(5)6÷(
+1 4
),1 3
=6÷
,7 12
=
;72 7
(6)42×(
-1 2
+1 6
),1 3
=42×
-42×1 2
+42×1 6
,1 3
=21-7+14,
=28;
(7)3
-(73 4
-52 3
),3 4
=3
+53 4
-73 4
,2 3
=9
-71 2
,2 3
=1
;5 6
(8)7
+5 7
-3 4
+2.25,19 7
=(7
-25 7
)+(5 7
+23 4
),1 4
=5+3,
=8;
(9)3÷
×3 8
÷8 3
,1 3
=3×
×8 3
×3,8 3
=(3×
)×(8 3
×3),8 3
=8×8,
=64;
(10)73×0.6+26×60%+
,3 5
=(73+26+1)×0.6,
=100×0.6,
=60.