问题
解答题
脱式计算,怎样简便就怎样算.
|
答案
(1)101×99 102
=(102-1)×99 102
=102×
-99 102 99 102
=99-99 102
=981 34
(2)(4
-35 6
)÷(3 4
+3 14
)2 7
=1
÷1 12 7 14
=
×213 12
=
;13 6
(3)(0.92+
)÷(4-22 25
)7 9
=(
+23 25
)÷12 25 2 9
=1×9 11
=
;9 11
(4)36×(
+2 3
-1 6
)3 4
=36×
+36×2 3
-36×1 6 3 4
=24+6-27
=3;
(5)
×13 8
+3 7
×3 8 3 7
=
×(3 7
+13 8
)3 8
=
×23 7
=
;6 7
(6)
÷〔4 9
-(5 6
+1 6
)〕1 3
=
÷(4 9
-5 6
-1 6
)1 3
=
÷4 9 1 3
=
×34 9
=
.4 3