问题
解答题
下列各题怎样简算就怎样算.
(13+
|
答案
(1)5×4×3 4
=5×(4×
)3 4
=5×3
=15;
(2)
×5 6
+5 9
×5 9 1 6
=(
+5 6
)×1 6 5 9
=1×5 9
=
;5 9
(3)
×37 5
+1 4
×1 4
+13 5 1 4
=(
+37 5
+1)×13 5 1 4
=11×1 4
=2
;3 4
(4)(13+
)÷1313 15
=13×
+1 13
×13 15 1 13
=1+1 15
=1
.1 15